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pistol length gas
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  1. Black Rifle Forum
    How reliable are pistol length gas system ARs? I'm looking at a good deal on a used aero 11.3" 5.56 pistol build but it's pistol length gas which has me skeptical of it's reliability. I know that short gas systems are for subsonics or less than 10.5" barrels which makes me raise the question.
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