Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 10.5 inch Carbine Length 4150 M4 Barrel 1-7 Twist 9 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 10.5 inch Carbine Length 4150 M4 Barrel 1-7 Twist 9 inch M-LOK Free Float Hand Guard A2. 56 Upper Receiver. Ghost Firearms machined these Mil-Spec AR15 Upper Receivers from 7075 T6 aluminum for durability that won't weigh you down in the field. This Ghost Firearms Elite 5.56x45mm Upper Receiver comes with a nitride-finished 4150 steel M4 barrel that is tough and resistant to corrosion and abrasion. With every upper you get an M-LOK free f