M.U.L.E. MOD. 1 (MODULAR URBAN LIGHT ENGAGEMENT CARBINE)
5.56 NATO cal., GPO, 16 in. steel barrel standard, other lengths optional, op-rod operating system, single stage trigger, Magpul ACS buttstock, MOE pistol grip, black finish, upper and lower rails, 30 shot mag., flared magwell, E sights, in...