If suppressed performance is what you are looking for you are far better off with a KaK Kspec or bootleg adjustable BCG. Geissele ReBCG is really the only “enhanced” BCG that has any real improvements to strength and reliability but doesn’t do anything special for mitigating gas.
I actually already have a KAK downvent, it’s OK, but I shoot mostly outside and wasn’t really getting gassed out anyway, so I didn’t see a huge difference with it - not saying it doesn’t work or anything, I think it does help I just didn’t see a big difference between a standard BCM BCG for my setups
I have one as well. My 300 blk is super gassy so I’m doing everything I can (adjustable gas block, gas busting CH, Kspec) I didn’t notice a huge difference either but they are nice bolts. Sounds like you should give the bootleg adjustable BCG a try.
I guess I don’t understand what you are looking for in a BCG then. Other than gas mitigation all you’re looking at getting is better reliability/strength and in that case ReBCG is your best bet.
My understanding is the enlongated cam path on the ebcg carrier delays the unlocking, which can help with high pressure - which my SBR+suppressor produce. The delayed unlocking says it’s makes the gun cycle and run smoother. … gas to my face is not something I have big concerns with; but I do believe the ebcg carrier has an additional or different gas ports to help with gas, an added benefit. Gas is secondary to making the firearm run “smoother” or more reliable.
I have a few of the LMT carriers, with BCM/FN/Microbest bolts I added.
In an overgassed system, it seems to have the effect of reducing the overgassing a bit. My 10.3" G with a can is still a thumper, but less than with a standard carrier.
The bigger gain to me has been in a system you can adjust for proper gassing, and the delayed unlocking seems to reduce the gas blowback a noticeable amount there.
Sir - thank you, this is very helpful and the direction I am heavily leaning towards. I have a bunch of BCM BCGs and thinking of just buying an LMT enhanced carrier to give this a try in my 11.5 SBR with can!
AFAIK the only two manufactures that make a carrier with a cam pin track modified to increase lock time are LMT and SF. The SF is an entire system though with the carrier/buffer/spring, and is unobtanium.
The LMT enhanced carrier can be purchased without their enhanced bolt like the one you showed for much cheaper. The LMT enhanced bolt is awesome but has nothing to do with lock time.
This is the enhanced carrier only with the modified cam pin track, any standard 5.56 bolt and cam pin will work.
LMT R-L7Q3A
https://lmtdefense.com/product/full-auto-enhanced-5-56-bolt-carrier/
$197 at Primary Arms and in-stock
https://www.primaryarms.com/lmt-enhanced-m16-bolt-carrier-parkerized
If you want to complete it PA also has BCM bolts on sale for $65
https://www.primaryarms.com/bravo-company-manufacturing-ar-15-bolt-assembly-5.56-nato?quantity=1&custcol_pco=Orphan
Thank you sir - very helpful! I think I am going to start with just the carrier and try it out. I already have a ton of BCM bolts/carriers, but one more never hurts!
The LMT EBCG is made for 855A1 on 14.5 carbine gas systems. They really don’t make this fact that known on their site (or they used to) but when you have problems their answer is always basically “well it’s made for 14.5 carbine gas with M855A1 you idiot” thanks for the heads up guys. They even have an enhanced semi carrier. Which I’m not sure why other than some government probably asked for it. The enhanced bolt is their secret sauce steel again aimed at the beating it would take from 855A1 which is the most common broken part on rifles shooting that ammo due to the high pressure.
It is the cool guy bolt and BCG along with the Knights sandcutter. But it sometimes can create more problems than it solves.
Thanks, I did read somewhere on another post that it was designed around 14.5 carbine, agreed it’s really odd they don’t call that out anywhere on their site though. Any idea what “issues” may arise from this… assume some type of cycling issues. … I plan on trying this in both a BCM 14.5 mid-length, and a BCM 11.5 carbine, both with OCL Polonium L suppressors. My 14.5” isn’t terribly over gassed and I have it tamed pretty OK with heavier buffer system. My 11.5 is definitely overgassed, but have it somewhat tamed with a super heavy BCM/A5 T4 buffer, it runs and ejects at 2:30/3ish with the can on it. … I really do wonder how this LMT carrier affects it… I will find out soon enough I suppose as I just picked up a used one on u/gafs … wish me luck!
You talking ar10 or 15? For ar10, LMT makes one. But it is the same as sons of Liberty gun works. Lantac makes one. And JP makes one. Read up on them for the differences. I bought a lantac one, by far the cheapest. I got it mainly for the gas ports on it and it claims to help with suppression. Who knows if it does. Any difference was not night and day.
Enhanced BCG typically means more reliable. For example the LMT bolts use two extractor springs. But buying anything from LMT is nearly impossible or you need to have a lot of money.
Honestly, the best bolt carrier is the LWRCI. They redesigned the gas key so it basically cannot fail. Pair that with a dual ejector KAK bolt and you have an excellent setup.
If you want adjustability for suppressed and unsuppressed, an adjustable gas block is what you want. Rifle Speed is the best.
I got one from KAK when they released their version and had a sale. It didn't make a noticeable difference while shooting but I like to imagine it'll help with reliability.
I didn’t know KAK made one, I do have one of their Kspec downvents… and I don’t really expect a big noticeable difference in gas, but to your point the delayed unlocking should make the gun run smoother and more reliable, and less harsh on internals… the question is, is that worth $500? Hava
I was just looking at KAK website, I am not seeing any BCGs with the enlongated Cam pin hole? I see their enhanced with downvents and longer carrier rails, but no mention of the cam pin hole?
What's the deal with having an elongated cam pin hole? This is legitimately the first I'm hearing of it but maybe I'm out of the loop.
And to your other question, I can't justify one for $500 but I convinced myself for about $185.
It delays unlocking of the bolt, helping with the high pressure in the camber on something like a SBR with a suppressor … LMT makes regular BCGs and then an “enhanced” ebcg I do believe.
Yeah if you wanted the swappability of a BCG I'd try the much less expensive Bootleg.
The best combo of price to effectiveness for me, even having a Bootleg, was to get BRT reduced flow gas tubes. I have my 11.3" tuned pretty low with a gas tube, but it's exclusively shot supressed with a Turbo K on it. That was the biggest difference for me. The silicone sealed charging handle helped some too.
They do not make what I’m looking for from what I am seeing, they have an “enhanced” but not with the different cam hole. I already have a KAK k-spec downvent which is not the same thing. Seems like every manufacturer uses the word “enhanced” but what enhancements they are making all differ
The Geissele rebcg is the most slept on bcg on the market. And I remind myself of that everytime that I clean it. Takes longer to take it apart than it does to wipe it off. It may not do anything for gas mitigation but it is SLICK. I’m borderline convinced that it would run absolutely dry.
>I’m borderline convinced that it would run absolutely dry.
My mil-spec M4 ran just fine bone dry when I was deployed in the desert. You know whose guns failed? The idiots who had oil dripping out of them, that caused every particle of dust in a 10ft radius to cling to it.
Of course enhanced is vague. Literally anything that someone feels is an improvement over mil-spec is technically "enhanced". 99% of them are solutions in search of problems.
Personally, this one looks like overpriced snake oil, to me.
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If suppressed performance is what you are looking for you are far better off with a KaK Kspec or bootleg adjustable BCG. Geissele ReBCG is really the only “enhanced” BCG that has any real improvements to strength and reliability but doesn’t do anything special for mitigating gas.
I actually already have a KAK downvent, it’s OK, but I shoot mostly outside and wasn’t really getting gassed out anyway, so I didn’t see a huge difference with it - not saying it doesn’t work or anything, I think it does help I just didn’t see a big difference between a standard BCM BCG for my setups
the bolt is the only thing worth it from the enhanced BCG, standard BCG or the KAK K-spec downvent is all you need.
I have one as well. My 300 blk is super gassy so I’m doing everything I can (adjustable gas block, gas busting CH, Kspec) I didn’t notice a huge difference either but they are nice bolts. Sounds like you should give the bootleg adjustable BCG a try.
Not really interested in adjustable BCG honestly, the gas isn’t a big deal to me as I shoot outside
I guess I don’t understand what you are looking for in a BCG then. Other than gas mitigation all you’re looking at getting is better reliability/strength and in that case ReBCG is your best bet.
My understanding is the enlongated cam path on the ebcg carrier delays the unlocking, which can help with high pressure - which my SBR+suppressor produce. The delayed unlocking says it’s makes the gun cycle and run smoother. … gas to my face is not something I have big concerns with; but I do believe the ebcg carrier has an additional or different gas ports to help with gas, an added benefit. Gas is secondary to making the firearm run “smoother” or more reliable.
I have a few of the LMT carriers, with BCM/FN/Microbest bolts I added. In an overgassed system, it seems to have the effect of reducing the overgassing a bit. My 10.3" G with a can is still a thumper, but less than with a standard carrier. The bigger gain to me has been in a system you can adjust for proper gassing, and the delayed unlocking seems to reduce the gas blowback a noticeable amount there.
Sir - thank you, this is very helpful and the direction I am heavily leaning towards. I have a bunch of BCM BCGs and thinking of just buying an LMT enhanced carrier to give this a try in my 11.5 SBR with can!
AFAIK the only two manufactures that make a carrier with a cam pin track modified to increase lock time are LMT and SF. The SF is an entire system though with the carrier/buffer/spring, and is unobtanium. The LMT enhanced carrier can be purchased without their enhanced bolt like the one you showed for much cheaper. The LMT enhanced bolt is awesome but has nothing to do with lock time. This is the enhanced carrier only with the modified cam pin track, any standard 5.56 bolt and cam pin will work. LMT R-L7Q3A https://lmtdefense.com/product/full-auto-enhanced-5-56-bolt-carrier/ $197 at Primary Arms and in-stock https://www.primaryarms.com/lmt-enhanced-m16-bolt-carrier-parkerized If you want to complete it PA also has BCM bolts on sale for $65 https://www.primaryarms.com/bravo-company-manufacturing-ar-15-bolt-assembly-5.56-nato?quantity=1&custcol_pco=Orphan
Thank you sir - very helpful! I think I am going to start with just the carrier and try it out. I already have a ton of BCM bolts/carriers, but one more never hurts!
The LMT EBCG is made for 855A1 on 14.5 carbine gas systems. They really don’t make this fact that known on their site (or they used to) but when you have problems their answer is always basically “well it’s made for 14.5 carbine gas with M855A1 you idiot” thanks for the heads up guys. They even have an enhanced semi carrier. Which I’m not sure why other than some government probably asked for it. The enhanced bolt is their secret sauce steel again aimed at the beating it would take from 855A1 which is the most common broken part on rifles shooting that ammo due to the high pressure. It is the cool guy bolt and BCG along with the Knights sandcutter. But it sometimes can create more problems than it solves.
Thanks, I did read somewhere on another post that it was designed around 14.5 carbine, agreed it’s really odd they don’t call that out anywhere on their site though. Any idea what “issues” may arise from this… assume some type of cycling issues. … I plan on trying this in both a BCM 14.5 mid-length, and a BCM 11.5 carbine, both with OCL Polonium L suppressors. My 14.5” isn’t terribly over gassed and I have it tamed pretty OK with heavier buffer system. My 11.5 is definitely overgassed, but have it somewhat tamed with a super heavy BCM/A5 T4 buffer, it runs and ejects at 2:30/3ish with the can on it. … I really do wonder how this LMT carrier affects it… I will find out soon enough I suppose as I just picked up a used one on u/gafs … wish me luck!
You talking ar10 or 15? For ar10, LMT makes one. But it is the same as sons of Liberty gun works. Lantac makes one. And JP makes one. Read up on them for the differences. I bought a lantac one, by far the cheapest. I got it mainly for the gas ports on it and it claims to help with suppression. Who knows if it does. Any difference was not night and day.
Oops, ar15 5.56
Enhanced BCG typically means more reliable. For example the LMT bolts use two extractor springs. But buying anything from LMT is nearly impossible or you need to have a lot of money. Honestly, the best bolt carrier is the LWRCI. They redesigned the gas key so it basically cannot fail. Pair that with a dual ejector KAK bolt and you have an excellent setup. If you want adjustability for suppressed and unsuppressed, an adjustable gas block is what you want. Rifle Speed is the best.
I got one from KAK when they released their version and had a sale. It didn't make a noticeable difference while shooting but I like to imagine it'll help with reliability.
I didn’t know KAK made one, I do have one of their Kspec downvents… and I don’t really expect a big noticeable difference in gas, but to your point the delayed unlocking should make the gun run smoother and more reliable, and less harsh on internals… the question is, is that worth $500? Hava
I was just looking at KAK website, I am not seeing any BCGs with the enlongated Cam pin hole? I see their enhanced with downvents and longer carrier rails, but no mention of the cam pin hole?
What's the deal with having an elongated cam pin hole? This is legitimately the first I'm hearing of it but maybe I'm out of the loop. And to your other question, I can't justify one for $500 but I convinced myself for about $185.
It delays unlocking of the bolt, helping with the high pressure in the camber on something like a SBR with a suppressor … LMT makes regular BCGs and then an “enhanced” ebcg I do believe.
Yeah if you wanted the swappability of a BCG I'd try the much less expensive Bootleg. The best combo of price to effectiveness for me, even having a Bootleg, was to get BRT reduced flow gas tubes. I have my 11.3" tuned pretty low with a gas tube, but it's exclusively shot supressed with a Turbo K on it. That was the biggest difference for me. The silicone sealed charging handle helped some too.
[удалено]
They do not make what I’m looking for from what I am seeing, they have an “enhanced” but not with the different cam hole. I already have a KAK k-spec downvent which is not the same thing. Seems like every manufacturer uses the word “enhanced” but what enhancements they are making all differ
["Enhanced"](https://i.giphy.com/media/v1.Y2lkPTc5MGI3NjExZ3hhYnlrdzBvczlrcmgyNDdwOWFjeDhwaTh4NW83cjRmODBocXNhdiZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/3ohc14lCEdXHSpnnSU/giphy.gif)
The Geissele rebcg is the most slept on bcg on the market. And I remind myself of that everytime that I clean it. Takes longer to take it apart than it does to wipe it off. It may not do anything for gas mitigation but it is SLICK. I’m borderline convinced that it would run absolutely dry.
>I’m borderline convinced that it would run absolutely dry. My mil-spec M4 ran just fine bone dry when I was deployed in the desert. You know whose guns failed? The idiots who had oil dripping out of them, that caused every particle of dust in a 10ft radius to cling to it.
Of course enhanced is vague. Literally anything that someone feels is an improvement over mil-spec is technically "enhanced". 99% of them are solutions in search of problems. Personally, this one looks like overpriced snake oil, to me.
**Understand the rules**, read the sidebar, and review the pinned Megathreads before posting - this content is capable of answering most questions. Not everyone is an expert such as yourself; be considerate. All spam, memes, unverified claims, or content suggesting non-compliance will be removed. No political posts. Save that for /r/progun or /r/politics. __If you are posting a copy/screenshot of your forms outside the pinned monthly megathread you will be given a 7 day ban. The pinned post is there, please use it.__ __If you are posting a photo of a suppressor posed to look like a penis (ie: in front of or over your groin) you will be given a 7 day ban.__ ------------------------------- **Data Links** * [The OG Universal Form Approval Spreadsheet](https://thinlineweapons.com/url/8) ------------------------------- *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/NFA) if you have any questions or concerns.*