Rock River Arms LAR-PDS

Rock River Arms' LAR-PDS employs RRA's patent-pending Piston Driven System (PDS). Featuring a purpose-designed bolt carrier, an adjustable gas piston and an over-the-barrel spring and guide rod arrangement, the LAR-PDS is able to completely do away with the traditional recoil system associated with AR-style firearms, making for an extremely versatile weapon platform. This rifle has a 16" chrome moly barrel with a 1:9" twist, 1/2-28 muzzle threads, and an A2 flash hider. It has a folding, non-reciprocating ambidextrous charging handle, full-length top mounting rail, and RRA two-stage trigger. The LAR-PDS rifle has RRA's side-folding stock adapter and 6-position tactical CAR stock with receiver extension storage compartment (folded 26", unfolded 34.5", extended 37.75"). This model features a carbine-length aluminum tri-rail handguard.