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Thread: Mid length or Carbine length ??

  1. #11
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    Gunfixr,

    I'd check out a good 11.5" barrel. I've got a 12.5" upper that I run suppressed and that little 1" seems to make a negative difference in balance compared to 11.5" uppers.

    For those that don't know, Gunfixr is an artist. He converted a stock saiga 12 into a beautiful select fire shotty with a 13" bbl. Works great with bird shot and high brass loads. He was also the original inventor of the upgraded gas plug for the saiga system.

  2. #12
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    Thanks for the pat, I hope you are still enjoying that saiga. I still get people saying things about the video.

    I have considered the 11.5", but there is a reason for the 12". As I will be doing a custom built permanent attach suppressor of reflex design, I want the barrel past the gas block a certain way. I want no m4 cut, just straight. 750 diameter, and no 1/2 x 28 threads on the muzzle. So, I will be shortening either a 14.5", or a 12.5" barrel. Probably a 14.5", as it should have a slightly smaller gas port, and allow some tuning.

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  3. #13
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    Since you are going this far, why not start with a 20" and drill the port to the correct size?

  4. #14
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    Quote Originally Posted by dentron View Post
    Since you are going this far, why not start with a 20" and drill the port to the correct size?
    Yes, a rifle length barrel cut off at the gas block shoulder will make a 12.75" barrel.
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  5. #15
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    Quote Originally Posted by dentron View Post
    Since you are going this far, why not start with a 20" and drill the port to the correct size?
    Just extra work. I'd have to turn the new gas block journal as well. Some profiles go a little under 750, so then I'd have to go 625.
    If I go with a carbine gas 14.5" or 16" from a reputable maker who didn't, or only barely overgassed it, when I cut it to 12", it will likely be OK, or only need slightly opened up. I won't have to mess with the gas block journal at all.
    Why do more work than necessary?
    I will thread the area just ahead of the gas block, at whatever diameter the barrel od is true to the bore. The muzzle will be threaded only just under that od. The suppressor will essentially be a cantilever, and have less effect on poi than just hanging off a 1/2 x 28 thread. Also, instead of the barrel sleeve inner tube typical of a reflex suppressor, this will have more internal volume and less weight.
    As it will be permanent, and go to 16" or perhaps 17", there will be only one stamp, and suppressors don't need an f5 to cross state lines.
    Short and handy, and at least decently quiet.

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  6. #16
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    How can anyone make recommendations in a gas system length preference without knowing the characteristics of the can involved?

  7. #17
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    I was only asking for a general consensus.

    This was why I pointed out that the suppressor would be custom. While I have it mostly planned out, some of the exact details are based on final barrel and gas length. It will be a reflex unit, but if the gas block is very close to the muzzle, there isn't much reflex room. By the same token, reflex amount has a point of diminishing returns.
    So, the overall length of the suppressor is still undecided.

    Sent from my SGP612 using Tapatalk
    NRA Life, SASS#40701, Glock Advanced Armorer
    Gunsmith for Unique Armament Creations LLC, 07/SOT

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  8. #18
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    I got my f1 submitted, so the decision on this barrel has been made.
    12", carbine gas.

    As this will be a custom build, I will document it with pics. I can sure share later, if anyone is interested.
    It'll be awhile, gotta wait for the f1 to come back.

    Sent from my SGP612 using Tapatalk
    NRA Life, SASS#40701, Glock Advanced Armorer
    Gunsmith for Unique Armament Creations LLC, 07/SOT

    VIGILIA PRETIUM LIBERTATIS

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