AR feed malfunction

[Wake27]

Was shooting with a buddy today, he was putting first rounds through a gun that he won. The receivers were Seekins, gas block was BAD, barrel was FN, handguard was Fortis, unmarked black buffer, and BCG I think was WMD guns (had the bio hazard logo and some type of NP3/NiB finish). The gun had some problems ejecting, but had even more problems picking up new rounds tho chamber. We tested a ton of different mags that worked in other ARs and I threw it on my lower to test with A5-2 and -0 buffers. We swapped the BCG and it worked fine but I don’t know what the actual problem is, other than that it has to be in the BCG.


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[Inkslinger]

Did you check to see if the gas key was loose?

[TacticalFun]

Was shooting with a buddy today, he was putting first rounds through a gun that he won. The receivers were Seekins, gas block was BAD, barrel was FN, handguard was Fortis, unmarked black buffer, and BCG I think was WMD guns (had the bio hazard logo and some type of NP3/NiB finish). The gun had some problems ejecting, but had even more problems picking up new rounds tho chamber. We tested a ton of different mags that worked in other ARs and I threw it on my lower to test with A5-2 and -0 buffers. We swapped the BCG and it worked fine but I don’t know what the actual problem is, other than that it has to be in the BCG.


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Who gave away a franken gun? Gas key was probably crooked or loose.

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[Wake27]

Gas key was tight and had decent staking. It was a donation for a raffle within his unit I believe. Looked like assembly was good and I recognized almost all of the parts as being good. Initially, it seemed like a gas issue because it wasn’t ejecting spent cases which is why I played with the buffers. But then after trying for a while it would eject, just not pick up a fresh round.


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[MistWolf]

Was a lock back check performed?

[Wake27]

Was a lock back check performed?

No it wasn’t, didn’t think of it for whatever reason.


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[MistWolf]

Something I learned the hard way- When shooting any AR for the first time, always start with a lock back check

[jackblack73]

Could it be the gas rings?

[MegademiC]

Something I learned the hard way- When shooting any AR for the first time, always start with a lock back check

This is a good start. Every minute detail of what you saw happening(not what you think, but exactly what happened and when) will help us help you.

Did any empty case stay in chamber, did the bolt get stuck on top of fresh round half in mag or was round free of magazine with bolt over it, was bolt not over the fresh round?... just some examples.

[Wake27]

This is a good start. Every minute detail of what you saw happening(not what you think, but exactly what happened and when) will help us help you.

Did any empty case stay in chamber, did the bolt get stuck on top of fresh round half in mag or was round free of magazine with bolt over it, was bolt not over the fresh round?... just some examples.

There was never any type of double feed, bolt over base, etc. The gun would fire and the trigger would go dead when trying to fire again. Early on the brass would not eject but it seemed to start after about 30 rounds or so. When it did eject, a fresh round would not be chambered but the bolt would be forward. When it didn’t eject, he’d cycle it manually to eject the brass and load a new round.


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