This is a LWRCI REPR MKII in 308 with a 16 inch barrel. Piston driven with 20 position adjustable gas block. Runs great suppressed. Patriot brown finish with Magpul UBR stock all factory with a Timney single stage trigger. Has a Trijicon Credo 2-10 optic with MIL Tree reticle and a ADM Delta mount with 45 degree offset mounting ring.