Bear Creek Arsenal BC-15 5.56 NATO 16in Right Side Upper Receiver M4 Carbine 1-8 1/2x28 Flash Hider Parkerized FDE UASCC5037556CM4161815FDESR. 56 Nato upper is compatible with any mil-spec AR-15 lower. Magazine not included. Specifications for Bear...
Bear Creek Arsenal BC-15 5.56 NATO 16in Right Side Upper Receiver M4 Carbine 1-8 1/2x28 Flash Hider Parkerized FDE UASCC5037556CM4161815FDESR. 56 Nato upper is compatible with any mil-spec AR-15 lower. Magazine not included. Specifications for Bear...