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Thread: Question for BCM 14.5 Mid users

  1. #11
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    I only have 570 rounds through my BCM 14.5" mid-length upper so far, 150 of those rounds were fired with my surefire suppressor attached, and I haven't had a single issue.

    Ammo used was 370 rounds of Hornady 55gr Training ammo, and 200 rounds of PMC 55gr.

    Thing is, I just now went and checked to see what weight buffer I had in there because I couldn't remember right off hand, and this ENTIRE time I've been using an H2 buffer by mistake. I thought it was a carbine or H1 this whole time Guess I'll just go ahead and keep it in there for now.

    Anyhow, this upper is one smooth shooting bitch, that's for sure.
    S/F
    Paul

  2. #12
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    Suppressed an H2 will be fine on a 14.5" BCM midlength. Mine will run with a H3 suppressed.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  3. #13
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    Quote Originally Posted by gotm4 View Post
    Suppressed an H2 will be fine on a 14.5" BCM midlength. Mine will run with a H3 suppressed.
    Yeah I know, I was mainly talking about the other rounds I fired unsuppressed. All in all, I'm really digging this carbine!
    S/F
    Paul

  4. #14
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    Quote Originally Posted by brit View Post
    I wouldn't doubt it at all. What would be the benefit of BCM using a smaller gas port? I know they know their shit, so there's probably a good reason.
    Smaller gas port equals less recoil and less wear on the gun.

    C4

  5. #15
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    Quote Originally Posted by shittercrewchief View Post
    And also some PMC 55gr. which is known to be light powered.
    That'll be a good test. That Bronze is about the weakest factory ammo you can get.

  6. #16
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    Interested to see if it runs wolf OK.

    I'll buy when they get a 14.5 LW middy out. Considering they can't keep the regular LW middy in stock, I'll hold my breath at my own peril.
    "Life is short, but the years are long." - Robert A. Heinlein

  7. #17
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    Quote Originally Posted by markm View Post

    Quote Originally Posted by shittercrewchief View Post
    And also some PMC 55gr. which is known to be light powered.
    That'll be a good test. That Bronze is about the weakest factory ammo you can get.
    My BCM 14.5" optimized gas system gun runs just fine on PMC. I'm using a CMT H buffer, LMT enhanced carrier with a BCM carrier key, BCM bolt, cam pin and firing pin and with PMC it locks back every time. With the AAC Brakeout it shoots very soft with very little muzzle rise.
    The next ammo I need to try is Wolf, Remington/UMC and Radway Green.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  8. #18
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    Can somebody give me some gas port sizes for a 14,5 midlength barrel. So we can compare the different brands

  9. #19
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    Quote Originally Posted by david.bergen View Post
    Can somebody give me some gas port sizes for a 14,5 midlength barrel. So we can compare the different brands
    14.5" middy barrel gas ports can be anywhere as there is no set standard.

    Companies like BCM and Noveske are typically going to use smaller GP's.

    C4

  10. #20
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    What range are we talking here ?
    Smallest to largest?

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