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Thread: Mid-length ejection angle

  1. #1
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    Mid-length ejection angle

    I was wondering for those of you who have 16" 5.56 Ar15 with midlength gas systems, at what angle does your ar eject? I have one at 3 o'clock and one at 4 o'clock. I now wish I'd gone with carbine length gas just for the increased reliability.

    At what o'clock does your middy eject? I am feeling underpowered at 4.
    Last edited by Wow; 07-31-21 at 15:35.

  2. #2
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    It sounds like your rifles are running perfectly.

    4 o'clock ejection alone does not mean the upper is undergassed or unreliable.
    Black River Tactical
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  3. #3
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    Quote Originally Posted by Wow View Post
    I was wondering for those of you who have 16" 5.56 Ar15 with midlength gas systems, at what angle does your ar eject? I have one at 3 o'clock and one at 4 o'clock. I now wish I'd gone with carbine length gas just for the increased reliability.

    At what o'clock does your middy eject? I am feeling underpowered at 4.
    Ejection pattern is something you shouldnt care about unless you are having a problem in the first place.

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    Its been said many a time here - ejection angle is not an indicator of anything useful.

    If your guns are reliable, who cares if they eject at 4 o'clock or 3?

    Andy

    I was typing while Vicious posted.

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    100% dependant on ammo being used, M855 spits out of my 14.5" & 16" mids at about 3:30-4:00, PMC Bronze dribble out at about 5-5:30 o'clock but still locks back on the last round.

    4 o'clock is perfect IMO.
    The simple fact of the matter is this, America has never not been great.
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    I have a 16” carbine-length gas AR15, and wanted to add a mid-length gun. The carbine-length has been 100% reliable. The new 16” mid-length is short-stroking with top quality .223 69 grain ammunition. Sometimes it won’t lock back on last round, sometimes it won’t grab next round and fails to feed. It ejects at 4 o’clock or so. I haven’t done much troubleshooting, as I was kind of disgusted with it. I realize mine is an uncommon case, but these mid-lengths don’t look so attractive now. I have tried several different magazines and ammunition (.223).

  7. #7
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    Quote Originally Posted by Colt Carson View Post
    I have a 16” carbine-length gas AR15, and wanted to add a mid-length gun. The carbine-length has been 100% reliable. The new 16” mid-length is short-stroking with top quality .223 69 grain ammunition. Sometimes it won’t lock back on last round, sometimes it won’t grab next round and fails to feed. It ejects at 4 o’clock or so. I haven’t done much troubleshooting, as I was kind of disgusted with it. I realize mine is an uncommon case, but these mid-lengths don’t look so attractive now. I have tried several different magazines and ammunition (.223).
    You likely have a gas leak. Either the gas block is misaligned or the gas key is loose. There are other possibilities, but that's where I'd start.

    What brand of mid-length is it?

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    Quote Originally Posted by georgeib View Post
    You likely have a gas leak. Either the gas block is misaligned or the gas key is loose. There are other possibilities, but that's where I'd start.

    What brand of mid-length is it?
    This.

  9. #9
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    Quote Originally Posted by georgeib View Post
    You likely have a gas leak. Either the gas block is misaligned or the gas key is loose. There are other possibilities, but that's where I'd start.

    What brand of mid-length is it?
    Both guns I mentioned are Smith & Wesson. The mid is a VTAC II, and the other one is the Magpul model (not that it matters). Thanks for the advice, I will look at what you mentioned next. I did check the buffers, both guns have carbine (lightest) buffers. I always clean and lube a new gun before I ever shoot it, so it was well lubed.

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    Quote Originally Posted by Colt Carson View Post
    Both guns I mentioned are Smith & Wesson. The mid is a VTAC II, and the other one is the Magpul model (not that it matters). Thanks for the advice, I will look at what you mentioned next. I did check the buffers, both guns have carbine (lightest) buffers. I always clean and lube a new gun before I ever shoot it, so it was well lubed.
    Please let us know what you come up with.

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