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Old 02-13-2011, 23:50   #43
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Join Date: Dec 2009
Location: Colorado
Posts: 505
All AR15 piston systems are add ons, most are copies of the Armalite AR180 system with a little tweak here or there. They add some weight to the rifle. If I was going to choose one I would choose one with a 1 piece carrier and a pinned gas block or I did choose a SCAR over every high priced AR with a add on piston system. I think I would even choose my $700 Armalite AR180 over most of the piston rifles on the market.
5.56, 6.8, SIX5. The Nexgen of 308s

Last edited by Constructor; 02-14-2011 at 09:31.. Reason: clarify
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