Review: Garand Gear M1 Gas Plug

[@irondwarf66]

just acquired an M1 Garand. I was happy to hace the information from both of these videos.

[@irondwarf66]

*have

[@Mercutian506]

Very happy you did this test. I originally opted for the GG plug because in theory I would have less bits and bobs lying around and could, in a pinch, shoot something slightly higher than the surplus/reload 150g M2 I normally use without the oprod immediately hating me forever. Looks like now Ill just spring for a Schuster plug and tune it down to 150g and still be well in the clear. That low bolt velocity coupled with the SEI compensator and kitchen table gunsmith custom fit kick-eez butt pad and ill be good to go! edit- One thing I did notice was after I installed the GG plug I stopped having random oprod dismounts so I guess that measly 10 inches of reduction made some significant difference in its operation. Also when I was younger and inherited the rifle from my father (first rifle ever owned) the first thing I did was put 3 boxes of 220 grain through it at the range. Bigger was always better, right? Oh boy did I learn the in's and out's of Garand maintenance and repair that year.

[@Gary99.]

What we’re the consequences of shooting that ammo at first?

[@Mercutian506]

@@Gary99. Bent the oprod most definitely was the immediate result. Took a lot of time to figure that out.

[@dogbone1358]

I’ve used a GG plug as a fail for many years. I never have and have no intention on using heavy bullet or high velocity ammo. My 1944 receiver in my 1947 barrel shoot and functions perfectly with this plug. The adjustable Schuster plug is just to complicated and time-consuming for me when there’s a much simpler alternative. Nice video by the way.

[@shockwavecity]

karl looks about 15 years younger without his beard and moustache.

[@LazyEngineer1]

Generally these video's aren't something I spend much time on fashion choices - but yea, good call Karl, the new look is better, stick with it.

[@AJ_ghdhejsien]

Holy crap that's Karl ! I only realised it once I was into the comments

[@E.L.RipleyAtNostromo]

Schuster also makes a high volume non-adjustable gas plug, and I chose that because I wanted to reload and shoot 165 grain ammo, and it’s just the thing to give me a little extra margin. I would never consider shooting anything heavier in my Garand personally, unless I went to their adjustable plug.

[@adamh7972]

This is exactly what I was looking to determine. Thanks for the great info guys. Going with the Schuster to protect my M1 and run a variety of 30-06.

[@vr4787]

Had to go with Garand Gear cause Schuster is no longer in production as of 2024. Not a single thing for sale on the website. The new Garand Gear v2 plug allows for a bayonet attachment

[@KillerRedVine]

I opted for the Shuster since my M1 is chambered for 308 and would rather tweak it for the ammo I can get, rather than hope the gas port was drilled properly. Glad to say it works wonders.

[@ericdecarteret7808]

I usually shoot M2 Ball but I like the flexibility of the Garand Gear plug. Plus I don't have to waste time and ammo messing around with the calibration segment of other plugs.

[@vicbrava2410]

Thanks for making this video. I live up in Canada where not only Garands are rare, but M2 ball is nonexistent and only commercial 30-06 is available. I just bought a Garand kit to build my own, but could've very easily damaged the rod. Added one of these Schuster gas plugs to my order so I don't ruin a gun I've wanted to own since I was a kid. Cheers guys.

[@henryofskalitz2228]

You're more likely to damage the garands stock than the oprod with commerical ammo if your stock is old and if the wood isn't cared for properly then it will likely shatter

[@BaconSlayer69]

@@henryofskalitz2228no 😅

[@henryofskalitz2228]

@@BaconSlayer69 yes older wood is more brittle and likely to crack and split compared to younger wood. unless it is properly cared for. your oprod also will not bend as long as it is properly GREASED. i repair and work on garands constantly i know what the old ones can handle as well as new reproductions of them. just don't shoot fully powered 30-06 over 180gs and you'll be fine and dandy

[@robruble9]

Took my Thermodynamics final this morning. PV=nRT is engrained in me now. Love when science and firearms go together.

[@Five0Music]

Great series, and the video clips of the bolt travel are among the most telling indicators I have seen anywhere. Kudos to you for using a self-explanatory method of comparing recoil impulse. I also agree that an adjustable plug is a much more useful solution for using a variety of loads. Ordered two Schuster plugs for my Garands today!

[@raddshakflatt3644]

how dare you not validate my purchasing choice!

[@InrangeTv]

Sorry. ~Karl

[@raddshakflatt3644]

+InRangeTV lol thats ok i was only planning to shoot m2 anyway. good to see it does indeed soften it up!

[@70willard]

Raddshak Flatt bahahahahah rite....... me also

[@dogbone1358]

I’ve used the GG plug for years just as a fail safe even though I don’t and don’t plan to shoot heavy bullet, high velocity ammo. My supply of military surplus M2 Ball will last me as long as I own my 1944 with a 1947 battled M1. Nice video by the way.

[@AIM54A]

You guys seemed to have missed the most important point here. High peak pressures in the gas cylinder is what damages op-rods. Bolt velocity deals with the total impulse applied to the operating rod. That impulse can be sharp (usgi gas plug) or gradual (ported gas plug). The Garand gear gas plug is designed to lower the peak pressure BUT preserve most of the impulse. You can see this in their pressure graphs. It applies a softer force for a longer period of time. A good analogy/comparison is a dead blow hammer vs a regular one. You cant look at at bolt velocity and come to any conclusion as to what the pressure was in the gas cylinder.

[@falconmoose1589]

Thanks. This is what I thought I learned from their graphs. Not the velocity, but the pressure. Mine works great.

[@Kalashnik1]

Accurate comment.

[@CalGlass]

I think these guys did a fairly good job of doing a compare and contrast between the merits of the Schuster Manufacturing and Garand Gear adjustable gas plus. I've not been able to obtain a Schuster Manufacturing plug but I do have a Garand Gear plug on order.

[@caseybrown5183]

I have used both and run really hot hand loads and hornady’s superformamce 150s and 165s - no problems of any kind (though I haven’t fired anything heavier than 180s). I have always made a point of using liberal amounts of modern, high temp grease - proper lubrication may be as important as ammo and plug choice. However, none of my Garands are especially accurate with hotter loads, so my preferred solutions: 1. Keep m1 well lubed. 2. Run factory loads (even modern ones, but never more than 178 grain) for “serious” use - hunting defense(? If a Garand is all you have...) 3. Garand gear plug - much simpler in application and has given the margin of safety needed (so far) while still cycling lighter loads. I am still in the midst of a long term handloading project to develop the optimum/accurate hunting load. Winchester Extreme Point 150s are the most accurate round I’ve found so far, and it has been in both of my current M1s. Most of reloading to date has been for saving money on range Ammo.

[@7th_CAV_Trooper]

Just bought a Schuster from Brownells. Great info on this and related videos. Thanks for all the good things.

[@BTeamHooligan]

Thanks for the research. My uncle is giving me his '43 Springfield with matching numbers. I was looking at gas plug mods. I'll be definitely going with the Schuster.

[@BTeamHooligan]

@METALLIMAN like I said, hadn't owned a Garand at that point and have learned a lot since then. Thanks for the reply.

[@gtaclevelandcity]

"one size kinda almost fits most" Please make that a shirt!

[@Tripp426]

I've shot almost 800 rounds comprised of a mixture of commercial 150, 165 and 180 grain loads from various manufacturers with the Garand Gear plug and have had no issues with my rifle. I've shot a few 220 grain loads and they ran fine, but I wouldn't feed my M1 a steady diet of them and I don't plan on ever using any superformance loads. With that said, the GG plug has proved to be well worth the money for me.

[@nicklambert3979]

Tripp426 how many times did you use the 180 grain

[@anglicky69]

so, you're basically reiterating what they said in the conclusion of the video.

[@TheRayDog]

"No issues" may mean you haven't bent the op rod yet. Just a matter of time. The vid's testing showed no difference in op rod velocity on heavier loads.

[@derekeastman7771]

@@TheRayDogbut they said that that was only the hottest 220gr load they could find, which is obviously not what this product is designed for, and I would say using such ammo is asking for trouble

[@roguefive512]

My new favorite channel to watch. You guys are awesome. Subscribed!

[@harkkyn]

At the time i had bought my GarandGear plug, i had never heard of the Schuster plug, I was entirely new to the rifle. I mainly just use hunting loads through it for white tail deer. (Remington Core Lokt or Federal Power Shok 150gr)

[@falconmoose1589]

Mine works good. So far. Only fired 180 to 150 tho. 2,800fps MV.

[@pappybugington]

Outstanding video gentlemen. Exactly what I wanted to see following your first ammo video regarding the proper ammo. Thank you.

[@sterlingcr7860]

Awesome video!!! I would enjoy seeing a video that goes deeper into the calculations and see what the actual volume change is between the standard, Schuster, and Garand gear gas blocks. Also PV=nRT may not be as applicable at the pressures being tested. An equation of state that takes into account the compressibility of the gas may be more accurate in this instance, but for simple comparability....it may be sufficient.

[@wonderbreadmodelsandhistor1566]

Thanks for the amazing review...I was honestly in between these two products. Made my choice easy!!!

[@hardknokker]

Thanks guys, GREAT video! Helped me decide to buy the non-adjustable plug for the commercial ammo I plan to use.

[@paulsimmons5726]

I was thinking about the Garand Gear plug but will now reconsider the Schuster plug. I was hoping that the GG would be the perfect one size does fit all but apparently that's not the case, dang it! Thanks for the honest review, it gives me something to ponder.

[@fjenkins100]

I don't have any real experience with adjustable gas plugs but it sounds like to me that you are describing the McCann gas plug (replaceable jets) instead of the Schuster plug (adjustable jet). Maybe Schuster makes both kinds, but a quick internet search didn't show the replaceable jet type. Thanks, enjoyed the video.

[@roomonfire99]

Another good video guys even though we can't have M1's in the UK! It'd be interested to see your thoughts on the M1's peers eg 98k, No4, Type 99, Nagant etc in a side by side test in a real world experiment. As with AR's and AKs everyone has their favourite but I'm sure you guys could have some interesting comparisons to run the pieces against one another to draw conclusions. Anyway, just a thought. Great channel - keep it up. All the best from the UK PS- Karl great trousers and glasses combo!

[@Perfusionist01]

nice video, it's fun to see guys who actually test some of this stuff. Looks like I should invest in a Schuster plug just to keep life in my 70 year-old rifle.

[@LazyEngineer1]

Great review, thanks guys. I bought one, because of their charts showing how awesome it is as a panacea. But really, if it's not slowing down bolt velocity, then it's not slowing down the impulse or preventing damage potential. It's better than nothing, but not nearly as impressive as they were leading one to believe - which is good to know. Also, I couldn't agree more about the GI screwdriver not fitting. That is a completely ridiculous oversight for the Garand Gear guys to do that! Why on Earth would you NOT machine the plug to be compatible with the standard tools for plugs!?!??!? It's more than just an annoyance, gas plugs come loose all the time. The ability to field tighten such a thing back up is vital. It's sloppy, and when companies do something sloppy, it makes you doubt. That should have been my first clue that the claims were overstated, and sloppy design features like this make it a lot easier to believe your findings, that they also overstated the effectiveness of the item. I'll keep using it, I have it anyway and it doesn't hurt - but if I had to do it over again, I probably would have saved my money.

[@Dr4gon2000]

I just got a garand yesterday and I was shopping for ammo today, I picked up a box of 170gr Remington gold/green box because it was the cheapest and in the back of my head I had a nagging feeling that Ian was saying something like "This shit will blow up your gun". I left the store with some 150gr federal made for the garand, thank you gun jesus.

[@benkanobe7500]

I love the blend of the seat of the pants with real science you guys do. (And you explain the science part) Keep up the great work!

[@troy9477]

Good info in here. Thanks for the compare and contrast (saw the other video too). When i get serious with mine, i will go with the Schuster if i need one.

[@mikeblair2594]

damn carl, you weren't shit'n when you said you were gonna trim it back.it looks good and respectable. and believe it or not, I like the shades too.they look like somethin I would where at the forge or to the bar. thanx guys.you the best.

[@doranmaxwell1755]

I do actually have both tho... Adjust the schuster so that it will shoot the hornady hot stuff... Take it out... use the Garand gear one for everything else... change the entire plug to the schuster when you shoot the hot stuff or 220 grain hunting rounds... easy to switch plugs compared to the using up a bunch of ammo to adjust the schuster.

[@shibbershabber]

Ive had luck with the GG plug. BUT... If Im not shooting HXP or commercial Garand-specific ammo........... im shooting off the shelf 150gr stuff.... which it seems that this plug will allow me to do so without damaging the oprod.... which is all I am looking for. Not trying to load anything special either heavy or fast... So, I would say if that is how you do, the GG is fine.

[@willbond1431]

Shaved beard, flannel shirt, orange glasses. Karl becoming a hipster?

[@InrangeTv]

Only on 5th Saturdays. ~Karl

[@darthrex354]

Why is Karl wearing Johdpurs?

[@InrangeTv]

Laundry day. ~Karl

[@docie98ohio]

i'll take the garand gear gas plug if you guys wont use it

[@InrangeTv]

We gave it away to a Patreon supporter in the last give-a-way: kzbin.info/www/bejne/n3i3oJdrrtF2bJI

[@niospartan]

7 years later I'm not schuster is still in business. The website is up but everything is listed out of stock, everything. I'm surprised another company hasn't made a solution like their own adjustable system or even Maybe a longer hollow plug for even more space for the gas.

[@a.c.m.4548]

Knowledge is (reducing) power (to a safe level). There really is no substitute for learning more and taking that extra step toward safety.

[@kerbalaerospacelabs3445]

It’s not safety, it’s a solution in search of a problem. Virtually all commercial .30-06 is completely fine to use in the M1. People have done better tests than InRange, and the CMP even says this is the case.

[@siestatime4638]

"Buy yourself some shades, or cheap sunglasses!"

[@siestatime4638]

MrJerry160 Of course.

[@shanemcdowell3628]

I decided on the Schuster for mine after this video, and because the name sounds neat.

[@kanehouse9697]

I’m happy I watched this before buying a gas plug im 19 and want to be as careful with my garand as possible so I’ll go with the schuster gas plug even tho I currently only own a lot of M2 ball I’d like to have get ability to expand my ammo verity

[@georgedean8509]

Thank guys. I just obtained an Expert grade M1 from th CMP and installed the Garand Gear plug gear on mine and my son's Garand. I'll be replacing them with the Schuster plug.

[@toddy2519]

There was a newer gas plug for the military issued M1's that had a self-compensating poppet valve arrangement. I wonder to what pressures that newer plug was designed for?

[@InrangeTv]

+toddy2519 Those were designed for grenade launching, we discuss that here: kzbin.info/www/bejne/Z2eUe4dmjLeJnJY ~Karl

[@PoliticallyInsensitive]

Have one Garand with the GG plug but honestly I'm probably going to put the stock plug back in it since it's the better of the ones i own. The rack grade i take to the range has the Schuster plug.

[@TexasDog3]

The link to the Full 30 video Isn't working. I was really looking forward to seeing it. Can you put it back up please?

[@bringbackthebattleships8933]

can you please review the Fulton armory compensator for the M1 Garand

[@InrangeTv]

I have one. It's loud but works well. ~Ian

[@bringbackthebattleships8933]

InRangeTV thank you for the info

[@igorstranenski5418]

I use Garland plug then loaded 168 match bullets until the rifle functioned properly and I have a very accurate M1.

[@unclenick222]

I like this video and the previous one and your enthusiasm for the M1 Garand and getting some action velocity numbers for it. However, there is one detail of your testing premise that affects your comparisons that you may want to allow for. The M1 Garand was not designed around M2 Ball. The military specifically required the Garand or any other rifle qualifying for acceptance during the 1930s new rifle trials to be able to use then-existing stockpiles of M1 Ball, with its 173-grain average bullet weight (specified as 174.5 grains with -3 grains tolerance). The ammunition issued for combat through most of WW2 was M2 AP rather than M2 Ball. M2 AP had bullet weights from 162 to 168.5 grains, depending on what material was available for the penetrators at the time of its manufacture. So both the loads normally issued for combat and especially the M1 Ball which was the design parameter load were heavier than M2 Ball and could be expected to produce more operating rod velocity. M1 Ball is long gone, other than a few surviving very old examples that probably won't perform representatively any longer. Also, it was loaded with long-obsolete powders like IMR 1185 and 1186, so you can't copy it exactly. However, you can get extraordinarily close with IMR 4895 and 4064, which replaced the obsolete powders. Hatcher's Book of the Garand has M1 Ball muzzle velocity, among others, listed on page 124. The list is of actual at-the-muzzle velocities calculated by Hatcher by working backward from the 78-foot military velocity measuring distance to the rifle muzzle. Based on substituting U.S. Army Ballistics Research Lab (BRL) drag functions into modern computer ballistics software or using drag functions deduced from the military drop and range tables, he appears to have got as close as 1 ft/s by his method. One expects M1 Ball would match the National Match ammunition velocity of 2640 fps at 78 feet from the muzzle, but M72 is actually a hotter load than the original M1 Ball, which Hatcher puts at 2647 fps at the muzzle and thus about 2597 fps at 78 feet out using the BRL drag function for the M1 Type bullet (same as the M1 Ball bullet, but without a cannelure). Nonetheless, this was still a higher energy load than either M2 Ball or the M2 AP load. We aren't allowed to post a how-to here, so even though I've made M1 Ball mimicking loads before, I have to leave you to work it out for yourselves by interpolating Hodgdon's published online load data information for the 175-grain SMK, which will match the M1 trajectory perfectly to 600 yards if you give it the same velocity. Hodgdon used a Remington case for their data, which is very close to LC brass in interior volume. They test using a 24" dimensionally tight pressure and velocity test barrel with ammunition manipulated during loading so the powder falls back over the flash hole for firing. These are the same things the military does to test, so the data should match well to what the military test procedure would produce with the same components. The main difference is Hodgdon uses the SAAMI 15-foot velocity measuring distance. Working with the BRL drag function for the M1 Type bullet, I find the velocity should be 2637 fps at 15 feet from the muzzle, so that's what interpolating Hodgdon's velocity and charge data should yield to get a match.

[@pro2nd888]

Punchline: Schuster is about to release a non-adjustable gas plug that sounds like a copy of the garandgear.

[@oldplace5]

No matter who makes the adjustable gas plug, it is a worthwhile investment. Means you can shoot modern 150 grain 30-06 and not worry about your rifle cracking parts.

[@Targetpopper]

I use the GarandGear plug but I was still Leary of shooting anything over 150grn with it when it came to commercial ammo. I use it for M2 ball or my M2 ball styled reloads. I should look into the adjustable plug though. Would be nice to have some options.

[@Targetpopper]

It's not something I want to share really. Liability concerns and all that. I use 1940's brass from different manufactures. CCI#34 primers, IMR4895 for powder, and a variety of bullets. Usually Hornady's FMJ 150Grn .308.

[@troy9477]

Andy47357 - Always invest in a few quality reloading manuals. They are backed by full labs and have pressure tested data. Beware online sources that are not a powder manufacturer or bullet company, or loaddata.com. DO NOT use data posted by random people-verify it with a current manual. As a bonus, some manuals have a specific section for Garand data. They are also full of useful info and tips. I'm sure u know all this, but in this digital age, i find that peopke forget about the value of reference BOOKS! Shoot safely!

[@Nogeri]

"If you cant operate a screwdriver, just throw away your Garand" xD

[@csernobillahun]

Karl's sunglasses are FABULOUS! :D

[@newtofinsanity8013]

love the missing link shirt IRTV

[@guyg3023]

Great job, great info, Thanks

[@johnbradley5236]

Thanks a ton for this video!

[@donaldstraitiff7827]

WEW IDEAL GAS LAW MECHANICAL ENGINEERS 4 LYFE

[@doranmaxwell1755]

ehhh.... I think that you can shoot a pretty wide variety of stuff out of the ported plug... as you say tho I would not shoot ultra fast stuff too much from the gun. The difference is... Unless you buy a whole bunch of one lot of commercial ammo for the adjustable plug. You might have to shoot 8-16 rounds every time you shoot the gun just to adjust the plug! this is like.. almost a $25-30 box of ammo just to adjust the plug not counting your time. and.. you need tools and the little parts.

[@BrassBashers]

Good review, my father and I picked up an M1 from my brother in law last year for $500... A steal right? We've used the Garand gear plug and haven't had issues in that regard. That said, we do have another MAJOR issue: every time I shoot the rifle, the trigger mechanism falls out.. Not joking.. My in law says they've put hundreds of rounds through it no problem, and now this happens. Ever since the first clip I've put through it, I've had to grip the trigger housing to keep it from falling out. Any good way to fix this? The stock is not original, so I can pick up another stock. Just wondering if there's anything less costly to fix the problem. I've heard to fill the stock where the trigger housing clips in with wood filler and sand it down until it works, though this only seems like a temporary fix to me. Any suggestions??

[@Mercutian506]

OH MAN! This was a problem I had for a good while! Always at the range trying to look cool and then my trigger group would fall out and bounce out in front of the range box. My fix was to replace the trigger guard as the latch was worn down from repeated disassembly over the years since I received it. Another issue is the guard itself might be slightly bent out of spec. Definitely cheaper than a new stock but requires knowledge on how to take down the trigger group. Easy to do after one or two attempts with just a punch or a screwdriver, I learned after watching a disassembly vid. Also, in the mean time, if youre definitely going to get a new guard you might just try bending the guard back in a bit with a few conservative whacks of a cloth wrapped hammer, while the guard is removed from the trigger group of course. Check to see if the latch face is deformed or showing silver. It might just be worn down. Ive had practically every problem surface with my Garand over the last decade and ive troubleshot a lot of them with success. Edit- A quick fix for right now would be to tie the guard to the wrist of the stock with some cordage. Works if you have the hole style (superior IMHO) but not if you have the open loop style guard. This was how I shot my Garand for 4 months before I finally fixed it. ALSO be sure that when youre removing or replacing the trigger guard in the future to apply even pressure directly backwards and get the latch to clear the floor plate before removing it. Stick a screw driver through the hole (or loop) and grip it between your middle and ring fingers. Replace it the same way. Try not to snap it back into place. Its a very small piece of metal. Or just dont take it apart that often.

[@jameswmallory6634]

BrassBashers think you could bend the trigger guard out a hair

[@BrassBashers]

Might try that. Local shop has 3 Garand stocks they CAN'T get rid of, selling for $35. Might pick up one or two if those and see what causes it to catch, might modify the current stock (it looks GREAT, the ones at the store look shitty).

[@terrycostakis6284]

It’s well known that the trigger mechanism loosens over time with repeated take downs of the rifle. Avoid doing this as much as possible. I’ve had mine for eight years and only take it down for a thorough cleaning once a year. The rest of the time I clean it the best I can through the ejection/loading port. I almost have to stand on the trigger guard for it to snap closed.

[@davidbell1619]

Replacement stock sets are sold on the internet for M1s. Some are oversize.

[@Dhdjksksn]

CMP manual - commercial Springfield 30-06 ammo is fine under 180gr.

[@friederichhuepfenstolz4011]

Is the ideal gas law really a good model here seeing the pressures are relatively high? I'm never sure when to use what, I guess I'll go do some tangential learning.

[@kainhall]

ive always ran the adjustable style....the one where you screw a bit down, and have a lock nut ontop of it. not the different jets style. and you can feel that your not slamming the oprod into the receiver.....thats how you know your safe. if it has to slam....its no NO-GO for me and my rifle.

[@antoineh.1014]

Nice job guys!

[@elektro3000]

Great analysis, this is one of my favorite things about InRange. However, Karl's facial hair was one of my other favorite things...I miss you, Karl's Beard! Come back!

[@thomasarcturus8947]

Cool pant, Carl.

[@cptreech]

2nd time of watching, still loving the "Shitcatcher" breeches! Russian or East German?

[@InrangeTv]

East German. ~Karl

[@JGILB]

My garand front hand guard has a slight wiggle from side to side. Is that normal or should I be concerned about it?

[@InrangeTv]

Normal. Don't worry about it. ~Karl

[@shibbershabber]

Its probably unsafe. You can send it to me and ill make sure it has a good life

[@DestroyER82]

Little offtopic question, but valid tho.. You guys ever tested BM59 rifle (based on M1)?

[@WJS774]

Isn't that basically an M14?

[@markkenward7040]

Did either plug change the bullet velocity, or was this checked? Put another way, if I am sighted in, and put in the plug, how much does it change point of impact at 100 yards? I always wondered about that.

[@TheOnyxGeneral]

Would it be possible to design a plug that acts like a piston. So depending on the pressure of the round it would extend a different length thus making the volume different with each ammo. Sort of similar to a pressure gauge for tires.

[@dan9002]

Thank You.

[@MilsurpWorld]

I think the Garand Gear plug is still better than the standard plug.

[@Wild_Bill57]

Milsurp World mar-gin-ally. Why pay for barely works when you can buy superbly works? No brainer in my book.

[@Onirot69]

Karl, I feel you with the tool not fitting the non adjustable plug. But my rifle had one of those on it when I bought it and its supposed to use a 1/4 ratchet. I use a little extension and a ratchet and it works good. I know this is an older vid and probably others have already mentioned this.

[@TheRayDog]

They're about the same price and the Schuster is more versatile. Easy choice for me.

[@patkinder6632]

I have a CMP Garland and I don't want to put more than 150 grain modern (usually Remington)thru the rifle .I have surplus .30 cal too, so would using one of these plugs be better when using modern ammo ?

[@ABowlofPho]

I wonder how the Garand Gear plug would work with the M2 ball ammo in cold weather. Cold weather always wreaks havoc on velocities and power and the only thing I'm worried about the Schuster is that if you set the screw to one temperature and it's safe then, if you move to a different temperature then it's either horribly overgassed or undergassed, depending on what temperature you had that initial set screw in. I guess it's not much of an issue as a civilian since you can just change back and forth on the fly.

[@crazyfvck]

@A Bowl of Pho Worst case, you would end up with a "bolt action" rifle, where you have to cycle it for every shot. Since people aren't taking these into combat anymore, it's not that big of a deal.

[@CobraMustang]

How comfortable do you guys feel about the slamfire issues using commercial ammo on these plugs? I look forward using nothing but whatever 125-165gr hunting ammo I can find. I'm not at all worried about the op-rod issues but the softer non milspec primers guess you can say.

[@InrangeTv]

The slam fire issue really wouldn't have much to do with the gas system. The M1 should be loaded with "hard" primers but I've never seen an M1 slam fire EXCEPT when single loading and allowing the bolt to go home on a round already chambered. When stripping the rounds from the en-bloc clip, the bolt is deccelerated thus making this situation less likely. Obviously the gun should be pointed in a safe direction when chambering any round, hard or soft primer being irrelevant. ~Karl

[@foist101]

Love Karl's rockin' shades.

[@c59997]

So when you put the new gas plug in you can run old (milsurp ammo) and new ( commercial ammo)

[@scotte2815]

and AND slap on a muzzle brake makes a fun gun down right sweeeeet!

[@mod-mns]

Is that gas blogs system like the fn fal gas system??

[@stevenfischer5848]

Is there anyway to get around the fouling problem of the Schuster plug? Around 40 shots and the action starts getting rough again and its a bit annoying having to clean it out after 5 or 6 clips

[@stevenfischer5848]

Also would a stiffer op rod spring achieve the same end?

[@olesalem9]

Isn’t Pv=nrt a simple interest formula...?

[@kibblewibble1]

Oh balls... just ordered one of these, too... Shoulda got the ported one. They do have an awful lot of graphs up with velocities and everything, so maybe they tweaked it, but all their tests show all forms of ammo coming in under M2. Some significantly so. Maybe I'll just get a ported one to be safe.

[@KillerRedVine]

If anyone can answer. I recently got a 308 converted m1 and was wondering if steel cased wolf or tula would be safe to shoot it in vs brass. Cost of ammo is not really the argument I'm going for, just if its safe. If you have any knowledge with steel case in 30-06 that also helps. I have an ass ton of tula 308 that I shoot out of other rifles and would be nice to use until resonable ammo supplies creep back.

[@IvorMektin1701]

Looks like the Schuster is better suited for my needs.

[@johnplaid648]

Why don't you have visuals? Charts and animation?

[@0Kahless0]

How often do you have to clean the adjustable gas plug to maintain it´s function?

[@RedBeardWalking]

at the risk of being an internet "gun expert" (I do not own the thing), it would seem you would clean it the same as an original gas plug, since the aperture is only adjusted by completely removing a screw. Shouldn't be much different.

[@kainhall]

ive shot probably 150 rounds threw my m1....ammo isnt cheap for my poor ass....and i havent cleaned it. you can feel when the op-rod is slamming into the receiver....and you can feel when its not. when you feel that it starts hitting harder....STOP and clean it.

[@scullkrusher]

Karl's head must be like a Mr. Potatohead. He changes his look so much. Now he is shaven and wearing vibrant fashionable sunglasses. lol

[@DystruktoBoi1]

Thank you, i was one of the ones that requested this. Would a heavier spring also reduce the oprod velocity? i have a wolff 15% extra power recoil in my 1954 Garand

[@InrangeTv]

It would, yes. ~Karl

[@kainhall]

to run a spring thats stiffer.... you have to but MORE pressure on the gas piston (which is the oprod) its not about the op-rod slamming back to a stop on the receiver.....its about how hard the gas hits it. it slamming to a stop only tells you that its probably moving too fast. your spring fixed the slam issue....but your now putting more pressure on the system.

[@DystruktoBoi1]

+kain hall i always thought it was the slam back and then forward that was the main issue? i have the GG extended gas chamber plug and an extra power spring thats why i asked

[@Mercutian506]

Yea you should be fine. My understanding is that the contact of the op rod lug channel unlocking the bolt and contact of the bolt (and attached oprod) with the rear of the receiver is the force that creates flex on the bend in the oprod. More the latter than the former. A stiffer spring just requires more gas force to move the oprod back, reducing the speed at which is hits the receiver, reducing the force put in the bend in the oprod. The stiffer spring will probably help more with positive stripping of the clip on the return and initial chambering more than it would help with the reduction in bolt velocity but both are good things. Edit- The slam in the receiver is the oprod being squeezed together from both end points. The gas pushing back on the piston at the front and the receiver pushing forward on the bolt attached to the oprod at the back (when it slams) bows out the oprod at the bend. Think of the archers paradox, same theory kind of. When the bolt slams back forward its actually being pulled by the oprod so no bending occurs there. Or I should think not anyway. Hope that maybe helped visualize the process a bit better?

[@robertmyers9080]

I may try to mill out my own "single slot" non gas plug

[@SmoothCriminalAaron]

What do you use for unscrewing the gas plug? Do you use any screwdriver or recommend buying a tool?

[@anthonyhayes1267]

A 1/4" socket adapter fits in there nicely

[@DFox-ud3gx]

Well I found you guys great video information thanks for this very important video.Ammo myth busters on Garand M-1 math 👍

[@alonzahanks1182]

you two avoided the big question????? Your safe margin guess ??????? is from what The million dollar question is did you bend your oprod and you should have gone through 180s 200s and 220s. some 180 ammo runs higher pressures than 220 grain soft point. You must have split your receiver bent a oprod . That is the question

[@Kiverson00]

It's been amusing to have watched Karl from making occasional very brief cameos as a heftier guy, to him being half the act on a new program as a much thinner and in-shape guy.

[@markhelms3590]

My Remington 150 grain "Core Lokt" ammo is rated at 2910 FPS. Is that slow enough that I can safely shoot it while using the Garand Gear plug ?

[@THEPAGUNGUY]

Mark Helms yes

[@NookyAvenger]

I wish I could get that schuster plug for my Socom 16, the op rod looks like its taking a beating. It's just a pain getting anything out of the US when it come to firearms related parts.

[@nickhankey3370]

Nice Orange Shades