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Archived [ARCHIVED THREAD] - 9mm AR
Posted: 3/29/2020 8:24:21 AM EDT
Morning guys. Question for ya. I have a Troy CQB stock on my super shorty  SBR. I have no problems firing 300blk or 556 with the CQB stock, but will it run if i put a 9mm upper on it too and will it fire.

Link Posted: 3/29/2020 8:28:39 AM EDT
[#1]
You might beat up the bolt catch if you don’t swap in a 9mm buffer.

I’m in the process of building one so I’ve been bouncing all over the place on research.

Archived [ARCHIVED THREAD] - 9mm AR
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