Sons of Liberty Gun Works East India Upper Receiver - Owner Induced Feeding Problem

Sons of Liberty Gun Works East India Upper Receiver - Owner Induced Feeding Problem with Live Fire Testing.
EDITED TO ADD FOLLOW UP RESPONSE FROM THE OWNER:
Alright gents,
To ease any qualms, the issue was user error installing the rail. The reaction rod I used wasn’t stellar and is getting trashed.
The reaction rod used is called the “Real Avid lug lock”. It was recommended to me by a friend, but it didn’t perform as it should.

[@Shrike200]

Logical me: That much polishing on an AR feed ramp is surely unnecessary? Actual me: I want mine polished like that too.

[@mtnbound2764]

ive never really wanted polished feed ramps until this moment.

[@AwkwardYet]

i too like shiny things

[@commie4164]

in general polishing contact surfaces within a gun will massively smooth out the action and fix a great many issues that can crop up, especially feed issues. most people consider ak rifles to have a fairly clunky rough action but if you polish the hell out of the hammer face, bottom of the bolt carrier that rides along the hammer face, as well as the top and bottom rails of the receiver that the bolt carrier rides on the action suddenly feels like glass. fixes a lot of feed issues that can occur when using commbloc surplus mags that all have slightly different tolerances too

[@Backyardmech1]

I’m getting the Dremel out polishing the shit out of mine. Fuck yeah! So much satisfaction. I’d show it off like Kenny Powers. 😂 Seriously. I’d like mine polished too.

[@rodiculous9464]

THE FEED RAMP HAS BEEN POLISHED TO A MIRROR SHEEN

[@seleckt6600]

Ive never even heard of feed ramp polishing until 12 minutes ago. But I am also 100% certain I absolutely need to polish my feed ramps.

[@Novagunner]

it makes a HUGE difference in 1911s

[@darinr9424]

Haha never been around some of the goofs with any type of 1911 have ya. POLISH THAT FEEDRAMP it solves all problems... common joke lol

[@Novagunner]

@@darinr9424 mine came from the factory that way, mirror polish, I'm sure they wouldn't spend the labor on it if it didn't do something.

[@darinr9424]

@@Novagunner wouldn't know on an ar. Dont own one. But on a 1911. Factory finish is 90 percent of the time plenty. No need for further work.

[@Novagunner]

@@darinr9424 I "hear" that if it's not, you'll run into problems with hollow point ammo on the 1911 I run a self defense ammo that acts like hollow point but retains the point... so yea, I've never had any issues with any ammos. But I've never run actual hollow point as the gun wasn't designed for it.

[@jimbill6205]

After years of doing "reliability packages" to 1911's, at some point I started to polish freed ramps on all autoloaders as a force of habit. Good stuff!

[@Trains-With-Shane]

Exactly. I remember seeing "polished feed ramp" as a selling point in the not too distant past. It's simple enough physical science to explain. the smoother the surface, the lower the friction. Whether it's trying to hold on to a copper jacket, fouling, etc. a slick polished surface will greatly reduce the rate of build up which will, in turn, make it that much more reliable, longer, in addition to the added benefit of bringing less friction to the bullet tip on its way up the ramp.

[@bigmike-]

@@Trains-With-Shane Polishing is a great way to reduce friction but, inevitably, repeated cartridge interfacing on polished surfaces will necessarily impart wear and marking onto those surfaces and, over time, unpolish them (e.g. scratch them up a little). In theory, it's possible to get a similar effect to polished (reduced friction) by basically microstippling feedramps -- basically giving them a very, very, _very_ subtle "golf ball pattern." This isn't something that's possible to do by hand, but it could be done on a 6-axis machine, and it'd offer far better friction reduction than polishing would. Obviously it'd be nuts expensive to actually do, but it'd basicall be friction reducion on a whole other level.

[@Koulnis]

I despise that it takes so much exposition to make sure there's no wiggle room for others to act in bad faith about what you were trying to do in your video. The internet can be a herd of cats sometimes. Good work on this! Really appreciated the insight.

[@Jay_Sullivan]

Clowder

[@jr28778]

@@Jay_Sullivan What tf is a Clowder

[@Jay_Sullivan]

@@jr28778 , it’s a group of cats. He said “herd of cats.”

[@jr28778]

@@Jay_Sullivan oh okay thanks , had never heard of that term until now . I'm going to jokingly use it when I go visit my family on Xmas as a way to describe the tiny little herd of cats they have. I'm expecting them to respond the same way I did 😂 " what in God's name is a clowder?" Lol

[@luisderivas6005]

@@jr28778 A group of crows is called a “murder.” Terms of venery are special types of collective nouns that denote groups of animals. The word venery entered English in the early 14th century through the Medieval Latin venaria, which means “beasts of the chase, game.” Although archaic by today’s standards, venery can still be used to mean “the practice of hunting.” If you’re curious, the word’s contemporary usage - that is, “indulgence of sexual pleasures” - entered English in the mid-15th century through the Medieval Latin veneria, or “sexual intercourse.” Likely these two became homonyms as a play on words. The sport of hunting being compared to hunting for a mate. Clever, no?

[@williwonti]

Never underestimate the probing power of a pinky nail on a feed ramp.

[@PowderMill]

williwonti sounds like a SEXUAL REFERENCE to me.... 😷😆🤣👍🏻

[@syitiger9072]

Nah

[@lancet.346]

*COMPANY GUNNY HAS JOINED THE CHAT*

[@kc8omg]

Every once in a great while KZbin's suggestions are actually useful, so glad I found your channel, I've been burning through your backlog of videos in my free time over the past several days. The quantity and density of *quality* information has been a bit like drinking from a fire hose, already trying to figure out how I can get out to Maryland for a class, keep up the great work sir!

[@theykilledjoel1496]

Same just subscribed

[@Quality_Guru]

Likewise I became an instant subscriber.

[@braveheartarmory945]

Me too, great stuff

[@jamesregan2181]

Captivating information and presentation

[@martinez0582000]

@@theykilledjoel1496 I'm dead!

[@Omnihil777]

I got a friend in Warsaw and I showed him this video and he confirms: That IS polished!

[@theKashConnoisseur]

Polish: confirmed!

[@andrewgaebel9948]

This guy knows more about AR gunsmithing than anyone ive ever seen. What an absolute pro!!!

[@ATINKERER]

That second bevel on the feed ramp is exactly what needs to be done on a 1911 barrel ramp. I can't see having a feed ramp with a sharp edge that the bullet scrapes against on it's way in. Nice work!

[@alanmeyers3957]

Wrong, the barrel acts as the secondary feed ramp, if you want to call it that.

[@ATINKERER]

You know, I wrote that so long ago that I'm not sure what I meant.

[@G58]

This issue reminds me of the seemingly eternal debate that goes on in the motorcycle engine rebuilding world. Some guys insist that it’s totally unnecessary and a waste of time to polish combustion chambers and exhaust ports. But anyone who’s witnessed the buildup of carbon on both areas, especially on two strokes, but also on four strokes, knows what a pain it is to deal with. A highly polished aluminium surface makes the heavy buildup of deposited carbon far less likely. It’s a no brainer. In every expensive firearm, the areas were the rounds feed are always highly polished. And again, there’s far less chance of deposits (in a weapon that $hits where it eats), and a smoother, faster feed. Plus, polished surfaces are less prone to corrosion. No brainer. Thank you for sharing. Nice work. Oh, I would plug the barrel before introducing it to all that abrasive material. It can get stuck in the rifling. One backflush with boiling water was our solution in the bush. Long time ago.

[@Colonel_Overkill]

I usually plug in a soft dowel before I polish near a chamber or muzzle for that reason, tight enough to seal the opening but loose enough to not damage a crown, chamber, or throat. I agree completely and I honestly believe the ones against it are in the "Im alright with good enough" camp for workmanship quality. A mirror surface is much less likely to rust or collect carbon as you say so in my opinion the performance is definitely worth the effort invested in the process.

[@fredsmith4106]

Motorcycle mechanic here (builder and tuner). Polishing combustion chambers and exhaust ports is a total waste of time on 4 stroke engines. If you are using the correct fuel and the A/F ratio is set correctly for the carburation/injection system you are using, the buildup of carbon will be minimal and at a level very easy to clean if the head needs to come off. There was a trend a few years back of polishing inlet ports, but that was counter productive as it allowed the fuel droplets to condense on the port walls which a satin/matte finish didn’t allow to happen. Mirror polishing the ports and combustion chamber is a waste of time and money.

[@epiphone5696]

@@fredsmith4106 Also a Motorcycle Mechanic who agrees with Fred smith's claim

[@G58]

@@lewisbolman7862 @lewis bolman you responded: “Outboard mechanic here , Mercury Marine says it is not advisable to polish anything, said raised portions on intake side help with atomizing fuel oil mix in a two stroke, actually told us it ruined the flow tests when testing polished surfaces. Don't shoot the messenger.” Everyone knows not to polish the intake side of any engines. I obviously never advocated that. Therefore neither you nor the advice you quoted are contradicting nor disagreeing with me. The piston crowns, combustion chambers and exhaust ports are what benefit from flattening, smoothing and polishing. This common knowledge in the racing world, and has been for decades. It’s important to read carefully.

[@G58]

@@epiphone5696 You are at liberty to agree with whoever you choose. But you a d he are both wrong. I can prove it, and have done many times. And unless you’ve actually done the job - PROPERLY, and obtained a genuine mirror finish, you’re just making noise. No one here seems to have done the job. It takes patience. You also need bright lights and powerful magnification.

[@johnevans1969]

As a retired toolmaker, I find it amazing that simple issues can dumbfound some folks. Guys only need to think,and if you find yourself flustered, take a short break and then return to the issue at hand. Most will find themselves asking "how the hell did I miss that?" It's not brain surgery fellas.

[@dickjohnson7845]

Some people just don't have the interest or the mechanical aptitude. They just want it to function, and don't care to understand how it does or why it does not. As a car guy, I've encountered a very similar statement direct from many people regarding their vehicles.

[@bobbye7353]

Good advice for any problem you might ever have 😂

[@theKashConnoisseur]

When it comes to things like firearms, I think a lot of folks look at it like "this thing is too expensive for me to risk breaking it any further than I already have". You get that a lot in cars, too. Once you learn to work on cars and guns, it's shocking how simple most of the systems are, and it's easy to scoff at people that can't do the repairs themselves. But they are quite a serious investment in money, so I understand the trepidation.

[@dickjohnson7845]

@@theKashConnoisseur I fully agree. As I said in the previous comment, if you don't have the interest or aptitude, you best leave well enough alone. I was always mechanical, taking my bikes/ toys apart at an early age and then progressing to building my own go kart from an old lawnmower engine. It was total crap, death trap but it was fun.

[@marktwo3160]

I have many complete Colt AR's of various vintages and Colt assembled M16 uppers. I never knew about the second stage bevel that Colt put on the feed ramps. Nice extra touch IMO. I always learn something from your videos and admire your technical expetise. It is a pleasure to watch a gunsmith who really knows their trade. I can't find one anywhere in my neck of the woods in GA.

[@frosty3693]

It might also be the difference between the M16 and M4 ramps. It would have been interesting if he had tried the feed a round from the other side of the mag to see if it was just the right side or both sides that had the issue. But the smith may have done that but did not film it or that he knew he was going to polish both sides anyway and it did not really make a pratical difference. But as a demonstration of a problem it was good. At least 556 bullets usually are about the same profile. (just pointy bullets not flat points and HP as in some other cartridges though OAL lenght can be an issue also.)

[@zedwards11bravo]

@@frosty3693 He said in the video that only the right side was a problem and the left was fine. But if you're polishing feed ramps, why would you only do one? lol

[@lentztu]

Solgw has a lifetime warranty, i’m thinking they would have fixed this no questions asked. I’ve met them in person and they take their craft seriously. Still cool to see the fix.

[@rustynut1967]

Yes. He said that in the video.

[@sstace69]

@@rifleshooterchannel208it's obviously personal for you and it shows. Also Colt is in no way perfect, you sound very fuddish telling folks they shoulda bought a Colt.

[@sstace69]

@@rifleshooterchannel208 no one mentioned the drinking but you so yes, you sound butthurt and childish. Colt is shit for value, over priced and a lot folks can match Colt quality. ARs with Colt "featuress" are a dime a dozen.

[@flyer8493]

Rifle Shooter Channel I see your a Dillion Collier fan🙄. His last negative contact with police was 10 years ago. I’ve met him before, he’s obviously made a complete 180 from the person he used to be, stand up guy. Give it a rest already, people change.

[@flyer8493]

Rifle Shooter Channel No. None of that is true. You know what? Just change your KZbin name to “CNN’s Number 1 Fan!” Since you like making shit up.

[@Licherous]

"some people would consider this polished, but they're not" nice

[@TheNvrskgn]

When I saw the next shot, it made me physically go "damn"

[@Namesi]

@@TheNvrskgn same

[@666like616]

and as a german gun smith...i'm thinking...naahhh, could be better. :)

[@johnpm1605]

Nice to see a proper engineering solution to a problem 👍 Knowing exactly how it works makes it easier to diagnose and fix problems....

[@thevewer1]

Why does it look like the rifle was dropped in vegetable oil then rolled in dirt

[@uhhhhNick]

Only person ive seen mentioning how filthy that rifle is lol

[@atillamaster09]

I think I was used to stir the fire pit

[@Schnozwangler]

The owner uses it?

[@mattwagnerofficial6499]

mall ninja paint job. they camo paint rifles for some reason.

[@thevewer1]

@@Schnozwangler I use my rifles but i clean then after most shoots

[@High_Desert_Tanner]

Solid work. I'm a fellow armorer and as soon as I saw the round hang I thought to myself that it has to be a burr on the back of the ramp. It's easy to miss a small burr in manufacture, then the bolt unlocking will pull that burr around and present it above the ramp. Nice polish work! SOLGW is a REALLY good company and I appreciate you mentioning twice that they would've made this right for the customer.

[@henryschannel363]

Who are/were(as your reply was two years ago) you an armorer for? About SOL, I had a bud in San An recomend them highly. I bought a stripped upper. Couldn't put anything on the oversize rail/flat top. He told me they would make it right. Naw, shoulda been right. Won't buy from them.

[@High_Desert_Tanner]

@@henryschannel363 I actually used to own a small shop building custom rifles. Did a lot of civilian rifles and dabbled in the SOT stuff here and there, doing the occasional duty rifle for individual officers/deputies who worked for departments that allowed personal rifle use on the job. Nothing big. I've since closed my doors and just build the occasional rifle for a friend here and there anymore.

[@henryschannel363]

@@High_Desert_Tanner Nice, thanks for the reply. I received an out of spec part, and I'm sure they would have made it right, as it was surely a fluke... but I'll just buy elsewhere. Sounds silly, but business is business.

[@CarlPapa88]

​@@henryschannel363Have they since got back in touch?

[@theKashConnoisseur]

@@henryschannel363 Expecting any producer to be 100% perfect is silly. I'm sure you've had a bad day at work and missed something. If you operate with integrity, all you can do is offer to make it right. Now imagine you're the QC guy at SOLGW. Are you suddenly expecting to never have an off day?

[@jamesregan2181]

He could have resolved the issue by himself if he had only loaded the left side of his magazines.

[@icelandviking1961]

😀

[@Bakunerf]

This is the fudd version of "my charger only works if you wrap it around the phone 2 times, hang it upside down and make a blood sacrifice"

[@icelandviking1961]

M18 Hellcat Well, I thought that James Regan’s comment was humorous. So I put up a happy face, if this offends you or makes you unhappy in any way, please say so, and I will arrange to get you a new soy drink.

[@jamesregan2181]

KEVIN Carrick 🤗

[@flinchfu]

Not easy... Had to jam wheat bread in one side.

[@alexgreene9986]

I had one with the exact same problem and I fixed it the exact same way you did, works great. Great info, keep it up and stay safe.

[@no.step.on.snek.2423]

The dude is awesome.. and his videos have made me an formidible armorer

[@geovargas3097]

I would have no clue how to do any of this, but it’s fascinating to watch you do your work. Very cool stuff sir. 👍🏼

[@anthonygonzales6029]

That amazes me somehow. I guess I’m just really good at fixing things

[@G58]

It’s incredibly simple. Your wife could do it, assuming she files her own nails. If not, the Chinese girl 😜

[@anthonygonzales6029]

@@rifleshooterchannel208 Are you saying a Sons of Liberty Gunworks is a POS rifle?

[@bl00d_farmer]

@@rifleshooterchannel208 wow, you have to elaborate on that.

[@bl00d_farmer]

@@rifleshooterchannel208 that is quite the claim. I am new here, and not taking sides, yet very interesting.

[@masterwrench4252]

Joined the army in 75' learned about the m-16. I did about 10 years active & reserve. My last unit I was marksmanship NCO...but I never realised the "left /right" feed lugs because of the double stack (light bulb goes on!) Thank you! I'll end with a quote of a friend of mine..."The stuff you learn when you think you know it all...yea, that's the besr" Thanks again, and you're right it wasn't till the end till you could actually see the beautiful smooth ramps. Cool 😎

[@jasonshink6589]

Marksman nco for who the cooks and finance? How can't you know that in basic training from disassembling and cleaning it? Pretty suspect

[@nonyabiz2777]

Yor integrity is never in doubt. I have seen plenty of times you could have blamed or threw people under the bus but you don't. Thank you and your team for the content. Bravo on another great video.

[@Volkin9]

Would have liked to have seen the deburring, Cratex stage, and polishing. Nice work!

[@dandiaz9752]

Yes he would because most people don't have the actual skills to pull it off or the time and give a fuck to not destroy the firearm. But I would have also liked to see atleast a time lapse of these stages

[@MyLonewolf25]

TheOtherWhiteBread0 not teaching others is how skills die

[@MyLonewolf25]

TheOtherWhiteBread0 everyone deserves the ability to learn There’s entire country’s, vital recipes, etc etc lost to time because of this attitude Greek Fire Roman concrete The land of punt “Everyone knows ____” “Not every chump should know”

[@seanoneil277]

@@MyLonewolf25 Yes, true in the abstract. But nobody's required to offer their knowledge/skills/experience for free merely because someone somewhere wants to learn. One never knows who intends to take unfair advantage of a skilled craftsman or artisan's life experience, and make a bogus profit off what was learned thanks to the skilled person's generosity. I say this especially at this point in American culture & history, where so much sham & con artist behavior is afoot. The supposedly innocent would-be student really might be trying to get something-for-nothing to minimize spool-up costs and maximize end profit -- and may have no intention of repaying the skilled craftsman for the lessons learned. It wouldn't be enough to say "we stand on the shoulders of giants" if profit is unfairly gained.

[@ianschroth6575]

@@seanoneil277 As a technician of 35 years, I agree. I'll teach who I want, when I want, but I'm not giving up my hard earned skills/knowledge to every fool that comes along. At least not if I want to keep my skills/knowledge valued and valuable.

[@ditzydoo4378]

I saw the area of the right side guide ramp which appeared to be unfinished leaving the shelf (for lack of a better term) in the path of the projectile nose. I also love that you've taken the time to explain that the Cratex tips are used to form the final shape, while a felt tip and rouge are need to achieve the true polish. Stellar work, I look forward to more.

[@Keatononame13]

Posted your channel in a discord group I'm a part of, few thousand members a few days ago. Keep up your objective demeanor, love the content.

[@scottsaylors1996]

Man that feed ramp job is absolute art

[@oddonekustoms]

I just recently found your page and have watched quite a few your videos. I gotta say the amount of stuff I've learned from your videos is ridiculous. I have to thank you for that.

[@dougbourdo2589]

Feed ramp as a possible factor in feeding issues is fairly common in my experience. Suspected that right away. Very well done on the repair. Trained by Colt for AR15/M16's.

[@PXCharon]

Stoner: *Designs magnificent weapon* Army: "If jam we need button to jam harder!"

[@aaronlastname7775]

Kyle Rittenhouse would like a word.

[@JackedRado71]

I’ve never had an issue with the standard unpolished m4 feed ramps. I do like to take the sharp corners off though, because in several ar’s I’ve noticed they have a tendency to gouge the brass pretty good. Sometimes even dent it. No bueno for reloading when that happens

[@fitdadexperiment-3eight797]

Right on making sure to mention that the manufacturer would have been able to take care of the issue but was sent to you instead. Definitely respect how transparent you are and try to look at all possibilities.

[@VexShiza]

Thank you for your professionalism. Your, well spoken, videos are always a joy to watch.

[@KirbySTompy]

As someone new to ARs and planning on getting my first one in a year or so, I am so thankful I found your channel. Very informative and helpful with giving me proper education on what manufactures I will want to go with. As someone who is very ignorant on the subject I thought this receiver was made in east India bc of the name and my first thought was, "of course its failing, it was made in india". Boy was I wrong. Thanks for educating me. Lol

[@bblauter]

It’s been a year or so, I hope you were able to follow through and get what you were looking for!

[@jasonshink6589]

Lmao...yea why would they call it that? Guess I'm gonna have to do some research.

[@TechGorilla1987]

You're like B.A.S.F. You don't make the feed ramps we use...you make the feed ramps we use "better." I recognize a fellow perfectionist. I'm in recovery.

[@nakotaapache4674]

i appreciate to see the details and deeply inside your craftmanship

[@Seanconnery1st]

Pretty badass work done. I’ve heard of polished & modified feed ramps, mostly on pistols. This provides context. Thanks, Isaac

[@brucebalsam2127]

It would have been very interesting to see the deburring and polishing. In the absence of seeing, it would be interesting to have heard a detailed description of the tools, materials, and methods used. Also, video of the tools and material would be helpful. It was a very worthwhile video. Thank you.

[@JohnDoe-vy5hh]

I agree.

[@SA-hk8xj]

I remember back about 15 years ago, right when the AR craze hit, I gathered all the build intel on various manufacturers. Most used the cut out feed ramps, except for one guy in TX. I called him to ask several things about his quality of work, testing, etc. And when I asked him about not using cut out feed ramps, he just stated he never saw use for it in his military background, and that a quality build wouldn’t need them. I was very new to this platform at the time, and eventually went with a DD, which has been operating without issues since. I do believe the gentleman in TX still does not cut the feed ramps as of today, but I may be incorrect?? Either way, great video, and informative. 👍

[@johnd9357]

The logic of “the military don’t do it durrrr” is retarded. Because cut feed ramps are literally called “M4 feed ramps.” IE: the rifle the military adopted called the M4, which featured extended cut feed ramps. Nowadays almost every upper you can buy has M4 profile feed ramps.

[@SA-hk8xj]

John D Oh I get it. Just didn’t understand it back then. I do believe it’s Larue Tactical that still does not cut the feed ramps?? Either way, interesting.

[@wades623]

The craze hit after 2004 because that is when the ban expired and look how that turned out for all the antis out there. Not too relevant but just thought it was something to mention since you mentioned the time 8t happened

[@nick_yawn]

"Some people would consider this polished..." what a legendary quote.

[@JoshG5110]

I often use youtube as background noise, but with your videos I can't look away. They're always so interesting. Thank you.

[@papafrank7094]

I wanted to thank you for your videos. By your demystifying the AR, it has helped me get deeper into the "guts" of my AR to tune it better, and has allowed me to assist my friends in issue diagnosis and proper repair. Many thanks!

[@boss350z5]

would love if this could be revisited to show then actual work being done on the feed ramps. Love the channel either way. I've learned a ton from your videos.

[@jeffprice6421]

I don't think youtube allows that. You will get banned for showing gunsmithing, for showing how to manufacture a gun...

[@musician445]

Seconding another comment, i found your channel through this video as a recommendation about 6 months ago. Its been freakin awesome learning through your videos Chad. Thank you!

[@donl4914]

I've built two AR's already. Just the Lowers that is. Never been into building the Uppers until now. Good video, wish we all could of seen the process you used. I have put a few thousand rounds threw my AR's and I have had some feeding issues in the past too. I'm going to check that out as well, see if there is a feeding ramp problem or if it's just me...lol Thanks for the Video. Given an old man more to think about in my builds. I too just subscribed to your channel.

[@matthewbeaver5026]

Mags can be responsible for feeding issues also. Along with buffer weight/spring tension ratio. Breaking the dremel out for the feedramps is one of those things you do only when none of the others work.

[@Fuckyouyoutube777]

Im going to this to all my Ars. I don’t have any feeding issues but I like the idea of it and it should make them run smoother. looking at the condition of that AR (filthy) I would guess the owner damaged that barrel extension trying to clean it with a screw driver, those burs didn’t pop up out of nowhere and obviously the gun has been running by how disgustingly dirty it is.

[@sammolloy1]

That makes sense

[@johnwirk]

Spot on....i would even speculate the owner collapsed the upper or broke it down, cleaned from the bolt end using a cheap tool with metal fittings ramming in and out only cleaning the bore and made contact with the back edge of the ramp. A few possibilites but certainly 100% the owners fault.

[@Troy_Built]

Several years ago I had the same problem. After looking at it I lightly polished it and made it much better but made it into a safe queen because I was tired of it jamming. The thought of ruining it made me not go further. Now I see how much you polished one makes me want to take it out and do a much more aggressive job.

[@SFDISME]

The process of diagnosis of the problem was what I found the best. Just like and good person doing service. Elimination of every possible thing that can be the issue. I learned something new about rifles today. Well... since I do not know much about their mechanics every time I watch a video like this I learn something new.

[@scratchanddentgarage5946]

First off awesome video! I would have never thought about something so small and simple causing such an issue! Thanks for the intel! But do you think it’s possible that the headspace/timing may have been off a tad bit since it wasn’t the factory BCG? I’ve seen it done with .50 cal machine guns during my time in service. Some of the threads became marred on the barrel and it wouldn’t feed properly. That could have been the cause of the peening on the locking lugs, however I would expect to see that on all of them, not just the first two on the right. Thoughts?

[@gorgonbazil2652]

The guy really didn't want a feed ram job done, he just wanted you to glean his rifle, that lazy SOB...

[@robertgolden1080]

Great informative video. Quick to the point. A no nonsense repair that will give the owner years of solid performance.

[@scottellingson9717]

I am new to the AR and just learning about it. I am glad I found your channel. Great information a mechanically inclined person can use.

[@Gronicle1]

Sorry you weren't able to capture the tools and manner in which you cleaned up the ramp. I am starting to appreciate black guns more after watching your videos. Army taught me to use one in 1968 But I never was interested in them until now.

[@Itsme-mx5tl]

He should have bought a Biden AR14!!

[@timazbill7746]

Grand Master Jay xr15 shorty bull pup

[@clambert2020]

Now that's just funny I don't care where you come from!!! Good one!!!!

[@flux_time]

Commies don't use AR's

[@Chaos1187me]

A cornpop-14

[@davec8439]

@Dave Allen No. That's the model that only shoots them in the leg.

[@voiceofreality9741]

Mating the m4 feed ramps of the extension to the receiver is a given for ALL qualified builders,, Polishing is just a way to mate the surfaces so the projectile tip does not jump from hitting a bump/burr/mismatch.. ..thanks for the video.

[@theccwdad]

Great work man. It's scary working with metal because sometimes it looks worse before the finish work. Yours turned out fantastic a true artist at work.

[@thomasis007]

I would really like to see a 15 or 20 minute long video on practices for polishing the feed ramps and hopefully they are common tools that are not specific in nature that everybody can have access to purchase at a reasonable price

[@ralphsawyer9535]

Little dremel and a green cratex wheel that fits the radius. Light hand, keep moving. Pretty forgiving, clik or two rougher than jeweler's rouge. You'd probably be good at it. Practice on a piece of scrap.

[@alanbud5181]

Good grief, if your having the feed problem then fix it, but that barrel had a definite burr. If it ain’t broke don’t “fix” it.

[@square1bmxrider]

Could that burr be the result of using a reaction rod or similar tool when loosening the barrel nut?

[@paulhughes3961]

First time I have seen feed ramp work. It was neat to see it how well it did.

Very educating. Would’ve not thought that would make such a difference. Even without having to fix the burs. Thank you. Very interested in learning how to fix concerns with the A.R. 15’s.

[@Whitesp44]

Great video. Very educational. I'm asking this as a non-gunsmith basement gun builder guy: why polish both ramps when only one had the "bur" and was hanging up? Might as well while your're there I get that but curious. Also I would imagine doing this would void any warranty SOL may provide regarding the barrel? Turn around time is paramount so I completely understand the owners motivation. Would've love to have seen the work being done! Next time. Thank you stay safe America.

[@jasonshink6589]

Guy...really? You're gonna just polish one side leave the other not? Does that sound right to you? Woukd you polish half a car ? Wtf

[@phillhuddleston9445]

Looks good but will the feed ramp rust without any coating or finish on it now? I know it wears off anyway but only on the specific spots where the cartridge touches the ramp and any corrosion would be worn off to keep the surface smooth, I would worry about the surfaces where there is no contact from the cartridge, is that something that should or should not be of concern?

[@Nolan001001]

The feed ramps should not rust. A polished surface has little to no voids for contaminants to settle as well as reducing the surface area for corrosive action. Hope this helps.

[@jimsworthow531]

I have had similar problems with 2 builds one 5.56 another 7.62x39. I used a diamond dremel chainsaw bit and massaged the ramps; i then used sand paper wrapped in a small dowel and went up in grit to 2000 until it was like a mirror. This worked perfectly and I did not remove the barrel on either; good video and info BTW.

[@burkeballistics685]

I was having exactly the same issue with my Stagg but the failure to feed was on both sides and only with the Jersey-legal 10 round metal mags (read into that all you want...). I didn't polish the ramps but a quick hit with a properly sized round file solved the problem. After watching this, polishing the ramps are now on my to-do list. Thanks for the great video.

[@BAW310]

same issue here... rounds not feeding, hanging up. I noticed big gouges on the ones that did chamber. I couldn't find anything online at the time, so I looked and saw those burs... said "what the heck" and got out the jewelers file and went to work. Runs flawless now.

[@MarcosRamos-hn5iw]

What does something like this cost? Even if my feedramp is fine? That’s some darn good work 💪

[@ICGorillaP]

I think it's funny that 2 long defensive disclaimers are required when showing an informational video. This goes to show how toxic the AR community is. If you hadn't given the extended disclaimers, fanboys and elitists from across the continent would have descended on to this channel with their superior keyboard warrior knowledge and told you how inferior you are and how you just don't know how SOLGW/BCM parts work because you're "a poor". It's sad that it's devolved into this.

[@G58]

Similar to Harley owners. There’s a theme here.

[@yeeturmcbeetur8197]

Get a gun. Shoot it. Listen to nobody. Because while they are bitching, you’re becoming a better shot.

[@Arctic2Noob]

Even airsoft is the same, elitist assholes are universal.

[@garypinholster1962]

I was thinking the exact same thing.

[@travistucker7317]

Lots of people in car communities are the same. So i just do me. Fewer friends but real friends

[@ryanthomas1153]

Great video on the subject. Just had to do this to one of my PSA's. Ran flawless since.

[@natejackson4791]

Chad, as always this channel is invaluable in the message you being. I have one of these that has the identical issue, you showed me exactly my thoughts were correct. I have the Cratex and fibre tools too for polishing. Thanks for the channel and your service.

[@tommcfarland5368]

Cant wait for that BCM BCG physical!!

[@brianpayne4549]

That gun looks like it’s been run over. Obviously, he’s never heard of cleaning it.

[@ddreese]

I learn a lot from your videos. I've thought about gunsmithing school (like SDI) as a second/retirement career, and getting an FFL, but unsure with the current climate.

[@g52879]

I would love to watch the ramp work in the making, that finish was beautiful! Great job

[@thesaint1517]

That was a great video on how to remedy the situation. Actually, by omitting the name of the manufacturer, you could have saved a lot of time talking about it. Nevertheless, you did a great job and the customer satisfied.

[@SkypowerwithKarl]

There’s a point where they just don’t feed correctly. The “middle”! Small ramps that just guide the tip work or large ramps work. Medium sized ramps can bind or bite the bullet’s ogive. The only recourse when this happens is just what is done in this video. Working smaller ramps have the advantage of more lug strength. If it ain’t broke.....

[@ChristianGrest]

Nice work! Really appreciate your detailed explanation of this issue and what your thoughts are to remedy it. Thanks for sharing!

[@chevy4004]

This is exactly what my rifle is doing and I haven't even fired one round down range yet, guess I should send it in, thanx man

[@alanhigh8125]

That weapon appears to have never been cleaned. I clean my ARs immediately upon returning from the range. If I spend the money on something, I maintain it.

[@danielmattera4298]

"maintained" and "cleared after every range trip" are not interchangeable. My guns are cleaned when I feel like it, or they get super filthy, the only thing I clean after every range trip is the light lens. My guns are also very well maintained.

[@Jeff-uq7iu]

Look up bcm filthy 14, never cleaned round count was 28k. Only malfuctions were ejector springs.

[@danielmattera4298]

@@Jeff-uq7iu BCM includes that article with all their products, I had never heard about it until I bought an upper from them, pretty impressive.

[@Jeff-uq7iu]

@@danielmattera4298 bcm is top tier imo. Cleaning a saw twenty times a day will cure the need to keep rifles museum clean!

[@danielmattera4298]

@@Jeff-uq7iu I agree, its by far my favorite rifle. For real man, after cleaning guns for hours that I don't get to keep, it kind of ruined cleaning my guns to perfection.

[@jafo7223]

Will Larson (RIP) would be proud.

[@johnbeauvais3159]

My brother learned to build ARs from him and has since build one for me and our other brother. He learned well. Mr. Larson must have been one hell of a teacher

[@jafo7223]

@@johnbeauvais3159 My favorite quote from Will during his classes..."Until Jesus gets into the gun business, there will never be a perfect gun.” - Will Larson

[@johnryan4769]

That was nice to watch through and through, just beautiful all said and done.

[@Evergreen1400]

Your work is top notch. I’m sure the video doesn’t do it justice but we can definitely see you got that to a mirror finish and you’re absolutely right most people would consider your 1st stage as being “polished”.

[@messmeister92]

Did the owner lend this AR to InRange for a mud torture test before he sent it in? That thing is filthy...

[@chrisclark5204]

Very informative but found saying multiple times that sons of liberty would have fixed this a bit annoying.

[@timothypadilla8910]

Chris Clark why? He’s only pointing that they’ll back their product if you make the effort to let them know it’s bad so some gun goofus doesn’t go out telling all his friends that sons of liberty are crap parts because he saw one getting fixed on KZbin.

[@chrisclark5204]

@@timothypadilla8910 I understand that. Saying it once or twice would be sufficient, no need to say it multiple times.

[@magnuslord]

@@timothypadilla8910 because it makes him sound like a sons of liberty schill?

[@TexasIsHome1836]

Don't blame him at all. Many people only read headlines and take things out of context. Somebody could watch 5 min of the video and start saying "Chad from SOTAR says SOLGW barrel extension and QC is garbage!" They probably will anyways...

[@slthbob]

Fantastic Gentleman.... I watched the video and predicted the cause... the follow up edit by the owner with his use of a "lug lock" during the install of the rail confirms it... nice work... much better than what I would of been able to do with a diamond grit needle file or the dremel :D

[@navigatorx1013]

Had the very same issue with a Beretta M76 auto pistol. Did the same mod. Works fine. Glad to see you cleaned that nasty chamber @8:10. Good work.

[@IWillSmurfYou]

How would the customer damage the feed ramps during handrail install..?

[@chrisgullett4332]

Easy, they would use what is called a reaction rod or what some call a receiver rod. What a reaction rod is, is an alternative for a vice block. If you do not have a vice block to hold your upper in a vice to install the barrel, free float tubes etc, you can use a reaction rod. The reaction rod goes through the upper like the bolt carrier would, and is shaped like the bolt on one end, and flat on the other end so it can be held on a vice, and it holds the barrel and upper so that it won't move when tightening the barrel nut. So it would basically be like putting just the bolt in the barrel, and holding the other end with a vice then twisting with force, which can cause burring if it is not fully seated in the barrel extension. No doubt that is what happened, he built his upper using a reaction rod, and it was likely misused and cause burring. Reaction rods are great, but only if you use them correctly, cause if they back out or are not fully seated this is what happens.

[@50TNCSA]

can you do a video on the second bevel on the feed ramp its interesting

[@1stFlyingeagle]

Two vids I have watched today that, without a doubt, taught me vital information on feed ramps and bolt testing. Thank you

[@REF49]

I’m doing so as well, soaking up the expertise he is sharing, gold standard presentations.

[@AbandonAllLogic]

I had issues until I polished my ramps as well. When I first started I felt like I had probably removed too much material. The finished product looked just like yours and the rifle functions flawlessly now so I guess it was just right.

[@fnulnu5297]

Did anyone else wince when he placed his thumb inside the trigger guard (twice) while loading a magazine??? Otherwise, thanks for an informative video.

[@NoNo-fy3kr]

:P Its def not a m1 garand .. So it shouldn't take the digit off

[@joeg5414]

@@NoNo-fy3kr I don't think that's the concern

[@828enigma6]

Could this have been a result of firing M855A1 AP ammo without using the improved magazine.?

[@nicknoga88]

855a1 isnt AP though

[@orlandogarcia9751]

I just found this channel omg I love it and thanks for all this great info

[@keithfinnell7505]

Excellent job!!! I subscribed last night and love the site! My first contact with the m16 was in the jungles of VN. You have to keep them clean!!!

[@roro5150]

OCD kicked in. I want (no need) to freaking clean the entire BCG! Filthy

[@justevil100]

How the hell does someone damage their barrel extention installing a rail?????

[@motorheadridermotorheadrid8181]

I think he meant to say bolt carrier. The owner changed to a BCM bolt carrier, which could have chewed up the lugs, but probably not.

[@mmelgoza1983]

Reaction rods.

[@johnd9357]

Never heard of the reaction rod have you? Plenty of people chew up their lugs or break off their index pins with reaction rods.

[@robertfoote3255]

BCM has a propriety barrel nut for there hand guards...... They held the barrel with a reaction rod to remove and install the barrel nuts..... That may have damaged it during the swap. 🤠

[@Jurnymn]

Very informative. A lot of knowledge on KZbin. Looks like I have to things to look forward to. 👍

[@jerrybrush3859]

Got yourself a subscriber! No drama, just a weapon issue and how you fixed it.

[@wolffo999]

those feed ramps needed fixed, regardless of why, I just wonder why! I have many builds under my belt, I shoot weekly matches, I’ve never seen a barrel that messed up

[@solhays]

Chad updated the information for the video but it was also posted on the SOTAR facebook page, the owner used a reaction rod to install the hand guard and the reaction rod caused the damage.

[@Tek0nn]

@@solhays Could the reaction rod have been out of spec or not inserted all the way to cause this?

[@solhays]

@@Tek0nn No idea, I just saw the update and the Facebook post saying it was caused by the reaction rod made by Real Avid.

[@bap2139]

are you eugene stoner's grandson?

[@SchooloftheAmericanRifle]

LOL. I'm not.

[@21psd]

I think Eugene would be proud

[@douglascavanaugh3204]

Im a newby and have learned much from your channel. Im having FTF issue on a new, 1st build. Getting ready to send it back to manufacturer. Thanks again for all the info you give about feed ramps.