RUC (RAINIER URBAN CARBINE) MOD 2
5.56 NATO cal., pinned RA Match low pro gas block, 16 or 18 in. M249 chrome-lined machine gun barrel, RAC compensator, 30 shot mag., Mil-Spec trigger, MFT Minimalist stock and grip, quick detach endplate, 6-pos. Mil-Spec extension w/H buffe...