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
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
Last edited by Constructor; 02-14-2011 at 10:31..