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To: Ol' Dan Tucker; TheDandyMan

Just read that the AR-556 is a gas-impingement system like the original AR-15, not piston actuated like the M1, M14, AK-series.

35 posted on 05/11/2016 9:30:49 AM PDT by Ol' Dan Tucker (...and he shall magnify himself in his heart, and by peace shall destroy many... Daniel 8:25)

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To: Ol' Dan Tucker

Yep....has that flared receptor tube that engulfs the gas tube from up front.

Exhaust gases in the bolt chamber

37 posted on 05/11/2016 9:40:18 AM PDT by Gaffer

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