Bear Creek Arsenal BC-15 .450 Bushmaster 18in Upper Receiver Heavy Mid 1-24 Twist 5/8x32 Flash Hider Parkerized Tungsten UAFC4014450MHB1812415TNGSR. 450 Bushmaster upper is compatible with any mil-spec AR-15 lower. Magazine not included....
Bear Creek Arsenal BC-15 .450 Bushmaster 18in Upper Receiver Heavy Mid 1-24 Twist 5/8x32 Flash Hider Parkerized Tungsten UAFC4014450MHB1812415TNGSR. 450 Bushmaster upper is compatible with any mil-spec AR-15 lower. Magazine not included....