LWRC C.S.A.S.S.
7.62 NATO cal., GPO, 16.1 or 20 in. CHF spiral fluted heavy barrel, 20 pos. adj. gas block, Surefire SFMB-762 muzzle brake, Geissele SSA two-stage precision trigger, Skirmish BUIS, B5 SOPMOD or Magpul UBR (16.1 in. model) or Magpul PRS (Pre...