Bolt Carrier Group Maintenance & Upgrades Featuring the LMT Enhanced BCG

[@dameanvil]

Wow! Thank you. Living in Europe, I was never in contact with weapons, like most Hollywood producers and writers. What you are saying makes so much sense. And, at the same time, it makes so ridiculous how on top of unlimited ammo and gas, the TV shows have weapons in perfect working conditions a decade later.

[@ryanthorne5432]

One thing about gas keys is that they can work loose over time, and they won’t look loose. Check for this by holding the body of the bolt carrier in one hand, and try to move the gas key with the other. Any movement between carrier and the key is bad. This problem is most likely to happen on really well used AR-15s and M16/M4s. Excellent information, as always, Tacticool Girlfriend.

[@TacticoolGirlfriend]

Yes, excellent point, thank you! A loose gas key should be apparent with a little wiggle.

[@warrenharrison9490]

School of the American rifle uses a torque drive set to 20 in-lb in reverse to check gas key tightness.

[@kpmac92]

I love that you dive deep into technical details like this instead of surface level reviews of every shiny gun like so many other channels.

[@Dan-di9jd]

Jim Sullivan came back with his own enhanced BCG that Surefire made. Jim actually gave a big shoutout to LMT for their enhanced carriers and said it was probably the best possible upgrade with a shorter barrel rifle. When they made the 14.5 and shorter, Jim Sullivan never accounted that in his design and unfortunately Colt just said to "make it work" and they used the same parts as the rifles but just added a heavier buffer and shorter gas system but it still had a much shorter lifespan and a much more violent system than what they originally designed when they scaled down the AR10.

[@thorsenst]

It's important to note the the altered cam path in the LMT Enhanced BCG was designed for carbine gas systems with minimal dwell time and large gas ports. IE: the Mk 18. It needs the high port pressure of the carbine system to work reliably. It will decrease the reliability of mid-length and rifle gas systems. If you're running a 14.5 or longer barrel, getting the bolt by itself with a milspec carrier is a better modification.

[@cheesenoodles8316]

Excellent 14:52, details I needed. The care and feeding of the AR platform. The BCG specifically addressed. I was the only one in my group not shooting an AR platform, now I am. It is good to have this knowledge.

[@thefirstthrownmolotov6852]

Heyyyy thank you for making maintenance videos! Just came off rewatching your comms video and was just thinking about cleaning. Love the tips about keeping eye on points of failure and what happens to BCGs when things break.

[@theprojectproject01]

Hey TGF Just listened to your interview ep of Tiger Bloc. Immediately came here to subscribe, and found THIS! Excellent!!

[@tecschooldropout]

really appreciate the technical videos.

[@pund_it1811]

Way to rock the lighting, and for a much-needed video!!

[@VerluxUA]

Can we just take a sec to note how great that fit is! Gosh

[@triggrhaapi]

Amazingly, despite being built in 2011, and having fired probably close to 6000 rounds by now, the gas rings on my DD M4v7 bolt still hold up to the stand test. Cleaned it maybe twice the entire time I've owned it.

[@jacobstatnekov6483]

I just found your channel, great stuff!

[@Blahajblaster]

I used to love running nickle boron bcgs as they seemed to run smoother, but over time, I found that it chewed up gas rings much faster than my regular phosphate bcgs Good info in this vid 👍

[@thefirstthrownmolotov6852]

Seconding this; the AR-Stoner NiB BCG I've been running has gone through gas rings faster than my phosphate BCGs. Not that its hard to buy and replace gas rings, but for those that don't want to bother then the phosphate BCG is more for you than a NiB one.

[@Blahajblaster]

@@thefirstthrownmolotov6852 its odd because I haven't had issues with Chrome bcgs and I've had friends with nickle Teflon bcgs that seem to not eat gas rings. But all nickle boron bcgs eat gas rings from my experience, I even saw one crack a cam pin really early on.

[@warrenharrison9490]

Nickel boron is a more abrasive finish according to Chad at School of the American Rifle. He mentioned it will wear gas rings at a faster rate.

[@monsieurlestrange6193]

Whatever you post. Holy fuck, I just found this channel and I am in love. You do the best work!

[@jb76489]

School of the American rifle has a good video talking about different coatings For anyone interested in more detail

[@warrenharrison9490]

I can sit and watch those videos for hours. Not sure why, I find it very educational and satisfying.

[@ethan5.56]

I’m running a young manufacturing BCG in one of my rifles they don’t stake their carrier gas keys. Great video as always

[@Healovich]

Guns, makeup, great fashion? Yes maam I'm here for it. Love this channel

[@KennethSchmitt]

Awesome video! Love your color scheme and vibe. Only been shooting for 5 years so I still consider myself a noob. Always love knowledge from you instead of a mall ninja or fudd.

[@dandyjones1185]

What a great channel! Thank you for sharing this content!

[@Colonel_Flanders]

This is like a more aesthetically pleasing School of the American Rifle. Dope

[@ryand2939]

Thanks for getting into the nerdy stuff. Beginning to realize why my V1 build was dogpoo.

[@angryandroid]

As a person that has a Bootleg Adjustable BCG in hopes to make shooting suppressed less terrible... It's not really worth it IMO. Ran M193 thru my Block II and I ended up keeping it on the "unsuppressed" setting to make sure it cycled when running my 300 SPS.

[@John-ro3vu]

They’re good BCGs. The bolt is made out of an Alloy called Aermet. I’ve found the best way to mitigate gas in the face was to get an OSS silencer. Amazingly effective - would love to see you do a video on one someday!

[@mcrampton001]

Not glamorous or exciting!? Every TGF vid is glamorous and exciting!

[@Dan-di9jd]

If you got a bore camera and can see inside the carrier, you'll see the milspec one has just a big hole where the gas key comes out. The lmt one has two gas ports that go left and right instead of straight down. I find it unique but it is harder to clean because you can't push a pipe cleaner down the gas key like you can with a milspec one.

[@southernfriedwestcoaster]

Thanks for the vids ❤

[@samnewell2229]

I’m running a Young Manufacturing enhanced bcg with a chrome finish. I’m a big fan of chrome, it’s easy to clean and it doesn’t require much lube to run smoothly

[@cymbolic_space1832]

I just gotta give props to the comment section for the lack of creeps 🦊🤙 p.s. great channel +1 sub.

[@SimianRagestien]

That's because they are a dude.

[@cymbolic_space1832]

@@SimianRagestien does that make them creep proof?

[@SimianRagestien]

@@cymbolic_space1832 is it fun in fantasy land?

[@cymbolic_space1832]

@@SimianRagestien Hey man, even if they are a dude, which i couldnt tell but its not like I was tryying to figure it out, you would think other people might not be able to tell either, hence some creepy comments could be seen as a plausible outcome. Thats all I am saying. Really at the core here I was impressed at this subcultures lack of laciviousness, i thought that was laudable and so i wanted to bring attention to that. Sorry I fired you up over it, not my intention at all. Gob Bless man and have an excellent day! 🦊🤙

[@SimianRagestien]

@@cymbolic_space1832 I'm not fired up. it was obvious as soon as they started speaking. I think it's funny how uncomfortable people are with me pointing it out.

[@MikeA817]

I'm using a Bexar Arms (pronounced BEAR) 9310 BCG in a DD M4A1 build. Right out the gate I can't be happier with its performance. Sure it's a hefty build, but paired with a Breek Arms Warhammer, it felt like the only gas coming out of my rifle was out the muzzle.

[@Flippwn1]

Ive been running a Bootleg bcg in my 300 blackout for about 8 months now. Definitely recommend. I've been testing a variety of ammo lately, subs and supers, and it allows me to cycle everything, at the very least. You can really notice the difference in the gas settings, especially regarding the movement of the BCG itself. Ive decided i want to go ahead and tune the rifle for subsonic ammo, so ill need to do a little more tuning than just the BCG. For supers + suppressed, the BCG alone made a world of difference in mitigating gasses.

[@guysracingsims2508]

Again another great video

[@warrenharrison9490]

Excellent video 👍 thank you.

[@davidtKlein]

@TacticoolGirlfriend, just curious, how many times a week do you practice at the range, and how many bullets per training session do you shoot? I thought that the bolt group in a CAR-15 (even a commando-length with a sound-suppressor) was tens of thousands of duty-cycles.

[@numbersix8919]

Cool, as always.

[@charles_wipman]

Very detailed and straight forward AR-15s bolt carriers review?, overview? maintenance guide perhaps..?; anyway, i liked it.

[@PyroBits]

"oh yeah those sound like great features on that LMT, I wonder how much itOMG 500 BUCKS" I'll stick to BCM or SOLGW for now.

[@gavinhammond1778]

Howdy GF ,thanks for the vid. 😊

[@anotheryoutuber_]

good clean stuff

[@hairydogstail]

The relief cuts are a bad thing on the ejector side..It leaves and an opening for ingress that the standard rail doesn't..The cam cut on the LMT is lengthened on the straight part of the cam path to allow more residual pressure to escape in the carbine gas system before the bolt un-locks..It will not work reliably in a rifle length gas tube..This lengthened cam track does not increase dwell time as that is determined by the port location to the muzzle....

[@savannahariel9636]

❤️🧡💛💚💙💜🖤

[@jacobmanalang8162]

silver sharpie for staking.i dont do it vented forward asisst, i never use my forward assist. some just want the forward assist. shooting suppressed some also did the high temp rtv chagring handle solution as a poverty gas buster especially on bcm high lip gen 1 charging handles battlefield las vegas does a lot of full auto rentals and said lmt lasts the longest. it could be that 8620 steel lmt is good kit. buy it if its available. stiffer extractor springs are how we used to get ar's running. the next biggest problem was shreared bolts and broken firing pins. i really like lmt and ive got colt, geissele, dpms, bushmaster, bcm, bca, psa, and custom builds

[@slingshotnerd]

What’s your opinion about Toolcraft’s Diamond Like Carbon (DLC) coated M16 cut BCGs?

[@TacticoolGirlfriend]

DLC is interesting, but I honestly like phosphate for its more porous properties, which help retain lubrication rather than slick it off.

[@slingshotnerd]

@@TacticoolGirlfriend lol yeah that’s fair enough, the main reason I got it is because I wanted an m16 cut bcg instead of my default ar cut one. I also got this specific bcg because of how great they made it sound; extremely low friction coefficient, it cleans easier, super resistant to wear, blah blah blah. But honestly I’m quite impressed with how it’s running so far, I’ve shot over 200 rounds with the thing and it may not retain as much CLP as phosphate, but it’s very smooth and silky when racking the bolt back’n forth, also it cleans just as good as my original bcg. Maybe it’s just buyer’s bias? Idk but I think it’s pretty good!

[@Cadian045]

After disassembling an M4 countless times, I will never do it with gloves on. I need my bare fingers to find the hidden carbon 😅

[@marknixon8604]

Nice topic

[@Pyreleaf]

Have you ever considered trying a DLC-coated bcg? I bought one from Sharps Rifle Company because I heard they run so smooth you almost don't need to lube them. Haven't had a chance to try it yet because life happens, but it's on my to-do list.

[@TacticoolGirlfriend]

I've considered alternate coatings, but I actually like phosphate finish for its more porous qualities, which help retain lubrication rather than slick it off.

[@Derkiboi]

Do you of good retailers by chance who sell the P 10C OR? I saw a few but i wondering if there's any reliable ones. Also good vid, been wondering about the BCG

[@introgrunt4046]

Wonderful

[@jom6617]

Is the 14.5 a midlength? I was reading that the lmt bcg only really works with carbine length gas systems and can cause problems with midlength. How has it worked for you?

[@TacticoolGirlfriend]

Yes, my 14.5 is midlength and worked flawlessly. Your mileage may vary though!

[@rjordan1982]

Have an engage mint!

[@leiac3163]

Damn, all the hottest girls really do be doing proper weapon maintenance huh? 😍🥵

[@SimianRagestien]

that's a dude

[@leiac3163]

@Sebastian Frasher lmao, you're delusional bud.

[@Criticaldrinker]

Einhorn is Finkle, Finkle is Einhorn.

[@boredvet]

Dude

[@KaneGregory]

Does the LMT help keep gasses out of your face with its delay or is it really not worth it I’m left handed and I’m looking for anything to help?🧠🤯🔫

[@TacticoolGirlfriend]

In my experience, yes, but it's not a night and day difference.

[@KaneGregory]

Thank you I should have waited you answered my question later in your video it sucks being left handed I shoot a pistol right handed I play guitar left handed I write right handed I’m messed up like my check book!👍🏼🤤

[@bevans7772]

I think the weakest point of the AR is the pink meat computer attached to it. That and the ammo. Remember, it’s always the ammo’s fault!

[@suprcody]

😮 my face after I google the LMT and see it’s $450…

[@shanemccray4050]

LMT Enhanced BCG and bolts are nearly non available for years now!

[@TacticoolGirlfriend]

I see it in stock here: www.titandefense.com/l7q3.html

[@shanemccray4050]

@@TacticoolGirlfriend thanks for the help

[@corruptbanjo27]

500 beans on boss firearms right meow

[@DeadMarine1980]

Why do your AK look funny?

[@Eringobragh1861]

My father showed me how to do that

[@MikeHunt-rw4gf]

Algorithm.

[@pyeitme508]

Wow

[@MidlifeCrisisTactical]

The shadows are pink....not......possible

[@51ngular1ty]

A blue light is aimed one direction and a pink the other therefore when blue light is blocked shadow is pink when pink light is blocked shadow is blue.

[@MidlifeCrisisTactical]

@@51ngular1ty Lol, I legit thought it was some kind of CGI or filter. Thanks for enlightening me

[@vorpalanvil]

don't get too comfy...

[@Firstamongstslowbois]

I’ve been waiting for this moment

[@Criticaldrinker]

Is it true that you were an armed participant associated with “CHAZ” in Seattle?

[@Soju_enjoyer]

Is it true you get no bitches?

[@davidbrinkmann7850]

Sneaky thigh cotnent in a maintenance video? SURE

[@nagasako7]

If TG gets hacked. Her 2 factor Auth is 2nd Amendment

[@isupportthecurrentthing5225]

i just get a spare bcg instead of the lmt enhanced carrier and bolt

[@Sijnenpru]

Speak

[@Alop777]

The masks are no longer required, much much less on a video. Lol!

[@cardboard_shaft]

take a guess why it’s worn

[@jasonjohn1978]

Is anyone else wondering why she’s still wearing a mask 😷 in 2023?! Sorry, I just can’t take people seriously when they have a mask on and try to tell me anything.

[@lvcsslacker]

no. go away.

[@51ngular1ty]

I would say a number of reasons, one they may not want their face to be fully known as they are a trans woman and that would likely make them a target of some groups. And two covid is still going strong.

[@jasonjohn1978]

🤔 I really hope you’re being sarcastic.

[@boredvet]

Cuz it's a dude. Google him.

[@gunnermurphy6632]

Algorithm comment

[@kegluneq6306]

Algorithm response (is that a thing? Should we say Al Gore Rhythm?)

[@Debate_Pervert]

Deep voice you got there. Also, I like your choker necklace. What ya hiding under there? 😂😂😂 How's the investigation going?

[@TacticoolGirlfriend]

This is a video about BCGs, not my body you creep.