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Thread: Should I Switch Bolt Carriers?

  1. #11
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    Quote Originally Posted by a0cake View Post
    Talk to the guys at ADCO about CMMG barrels. These guys see as wide a variety of barrels as anybody, and they believe CMMG to be the bottom of the bunch. The percentage of CMMG barrels that have a major problem is near 70%, according to them.

    You're about to spend $70 on a BC and possibly $40 on an H3 buffer (unless you have an extra already). For this price you are nearly halfway to buying a new quality barrel and FSB.
    Quote Originally Posted by jet80tv View Post
    Maybe you could sell the barrel you have and with the money you were going to dump into it you could obtain a quality barrel that you'll be happy with for a long,long time.
    Other than my suspicion that the gas port is too large, I'm pretty pleased with the barrel, and I don't want to replace it.

    Moreover, I don't have the tools or skills to replace a barrel (maybe that's lame, but at least I realize my limitations), and I'd need another muzzle device, so then I'm basically looking at a new upper, and that's way more than double the cost of a new bolt carrier and buffer.

  2. #12
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    Don't replace the barrel or the carrier. Carrier weight differences are negligible. I wouldn't buy a semi carrier if I had the choice, but there's no point in burning $70 for not much gain.

    Those old cold unshrouded/ramped carriers can be worth replacing though....
    "You people have too much time on your hands." - scottryan

  3. #13
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    Quote Originally Posted by markm View Post
    Don't replace the barrel or the carrier...

    Those old cold unshrouded/ramped carriers can be worth replacing though...
    Huh? Are you contradicting yourself here, or have I just not had enough coffee?

    Or are you saying that I should NOT replace the carrier because of the weight issue, but I SHOULD replace the carrier because of other issues?

  4. #14
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    Quote Originally Posted by Bimmer View Post
    Huh? Are you contradicting yourself here, or have I just not had enough coffee?

    Or are you saying that I should NOT replace the carrier because of the weight issue, but I SHOULD replace the carrier because of other issues?


    There are different "semi" carriers. Colt made a version that was ramped and forced the firing pin to cock the hammer ring cycling. That one is worth replacing.

    A semi carrier with the shrouded firing pin isn't worth replacing.
    Last edited by markm; 09-19-11 at 12:49.
    "You people have too much time on your hands." - scottryan

  5. #15
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    Quote Originally Posted by markm View Post
    There are different "semi" carriers. Colt made a version that was ramped and forced the firing pin to cock the hammer ring cycling. That one is worth replacing.

    A semi carrier with the shrouded firing pin isn't worth replacing.
    Aha. All clear now...

  6. #16
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    Really, a semi-auto carrier is one of those things that is really a non-issue that gets blown way out of proportion. Full auto is a bit "better", but both work.

    CMMG isn't the best rifle- I wouldn't put a suppressor on one due to the bores not always being centered. It really only becomes an issue if you are trying to build a super-accurate match-grade rifle or are trying to put a suppressor on since it can cause a baffle strike.

    I'd just shoot it... most seem to work well enough. (I remember a few years ago they were the flavor of the month.) We sold a lot of their M4gery model and never had any complaints- some of our customers put some pretty hard use on them. They're budget priced, but do well for the money you spend.

    I had an issue personally with one of their products when production was cranking up and almost everyone (almost) was having some QC issues. They paid all the shipping, fixed the problem, and send me one of their immortal magazines for the trouble.

  7. #17
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    If you folks will forgive me my ignorance, I'd like to ask what the problem is that actually needs solving.

    I see
    I figure it's probably over-gassed
    I see
    Following the consensus....I bought an H and H2 buffer to try
    I see
    I installed the H2 and it cycled fine, even rather dirty
    What I don't see is what actual problem is supposedly in need of 'fixing'.

    There's no indication that it didn't run right prior to fiddling buffers and OP states it ran fine after fiddling buffers.

    No mention of ejection issues, recoil pulse issues, cycling problems or really anything that might cause one to want to look into things a bit deeper to see if there's a solution.

    If it is over gassed and works fine, it is over gassed and works fine.
    If it is over gassed and as a result screwing up the way the thing works, then mabe start to chase the tail.

    Otherwise all I'm really seeing is 'I'm going to guess my stick is over gassed because of the manufacturers reputation and I've also heard others talk about changing buffers, carrier weights, and mabe even action springs, to perhaps help a consistently improper or poorly functioning rifle function properly and reliably'

    Not even something as simple as a 'trying to tone down a violent recoil for less muzzle climb/arthritic shoulder/petite female shooter' problem AFA I can see :shrug:

  8. #18
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    What's the problem? I still don't understand.

  9. #19
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    Quote Originally Posted by GTifosi View Post
    If
    If it is over gassed and works fine, it is over gassed and works fine.
    That's true. I have a beater Bushmaster 14.5 that's over gassed. So what? I just shoot the shit out of it.
    "You people have too much time on your hands." - scottryan

  10. #20
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    So you are telling me that you have a rifle that functions like it should. It feeds, goes bang, extracts and all that. I assume that it makes holes in paper some distance away....right? OK, now you dont quite like it because someone on an internet board said you don't have the best in the world......is that about it? Stop reading bllshit and go out and shoot your rifle till it stops, then, either clean the crap out or replace the broke part. Replacing parts and components just beacuse someone on the net said your toy blows is a waste.

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