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Thread: American Spirit Arms M4A3 carbine +++UPDATE+++

  1. #11
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    Quote Originally Posted by Koshinn View Post
    Where in Oklahoma are you?
    Ft. Sill

    Quote Originally Posted by Iraqgunz View Post
    ASA is located in AZ and I have personally been to their place. I won't say much more than to add that I recently examined one of their SBR barrels that had a gas port size of .096 and the weapon wouldn't run reliably at all.
    That sucks. What is the correct size of the gas port? And when did this happen? I'm sure since then they did their homework...
    Last edited by JJEH; 05-22-14 at 12:08.
    Jorge

  2. #12
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    Quote Originally Posted by JJEH View Post
    Ft. Sill



    That sucks. What is the correct size of the gas port? And when did this happen? I'm sure since then they did their homework...
    .071 is the proper gas port for a 10.3" barrel.
    Quote Originally Posted by C4IGrant View Post
    Colt builds War Horses, not show ponies.
    Quote Originally Posted by Iraqgunz View Post
    This is 2012. The world is going to end this December and people are still trying to debate the merits of piece of shit, cost cutting crap AR's. Really?

  3. #13
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    Quote Originally Posted by sinlessorrow View Post
    .071 is the proper gas port for a 10.3" barrel.
    Thank you sir.

    That really sucks. Question is, did they fix it?
    Jorge

  4. #14
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    Quote Originally Posted by JJEH View Post
    Thank you sir.

    That really sucks. Question is, did they fix it?
    Being a quality engineer, my question would be, why did they have it wrong in the first place and what else are they doing wrong (or not to standard specs)?

  5. #15
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    Quote Originally Posted by crosseyedshooter View Post
    Being a quality engineer, my question would be, why did they have it wrong in the first place and what else are they doing wrong (or not to standard specs)?
    Good question, wish I could answer that.
    Jorge

  6. #16
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    Quote Originally Posted by crosseyedshooter View Post
    Being a quality engineer, my question would be, why did they have it wrong in the first place and what else are they doing wrong (or not to standard specs)?
    This is the norm in the AR realm... not the exception. I've got a Sabre 11.5 with an .090 or some ridiculous port. And Daniel Defense wantonly produces a Mk18 clone barrel with an assed out gas port.

    Over gassed ARs produced by lunatics so that mouth breathers can run dog shit ammo is the root of the vast majority of AR problems.
    "You people have too much time on your hands." - scottryan

  7. #17
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    Correct port size should be in the .071-.073 range. This was a recent barrel used by someone from an LE agency. I'm pretty sure they didn't do their homework and there are plenty of others who also have oversized ports. I saw enough when I was there to make me steer away from them. YMMV

    Quote Originally Posted by JJEH View Post
    Ft. Sill



    That sucks. What is the correct size of the gas port? And when did this happen? I'm sure since then they did their homework...



    Owner/Instructor at Semper Paratus Arms

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    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

  8. #18
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    You generally do not fix a port that is oversized. And since it was also a 4140 CroMo barrel, 1/9, etc... it makes no sense.

    Quote Originally Posted by JJEH View Post
    Thank you sir.

    That really sucks. Question is, did they fix it?



    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

    M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141

    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

  9. #19
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    Quote Originally Posted by Iraqgunz View Post
    You generally do not fix a port that is oversized. And since it was also a 4140 CroMo barrel, 1/9, etc... it makes no sense.
    Right. I read 0.69 sorry. But true, that's disappointing.
    Jorge

  10. #20
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    You could run an adjustable gas block. But any gas block worth its ass would be more valuable than the barrel at that point.

    It's a tent stake.
    "You people have too much time on your hands." - scottryan

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