
Product Details
M4 Feed Ramp Barrel Extension M4 Feed Ramp Flat Top Receiver T-Marked Upper Receivers USGI 1/7 Twist Rates USGI 5.56 NATO Chambers Mil-Spec 11595E - Certified Barrel Steel (CMV) Chrome Lined Bore and Chamber Manganese Phosphate Barrel Finish USGI Government Profile Barrels HPT (High Pressure Test) Barrels MPI (Magnetic Particle Inspected) Barrels A2 Flash Hider Included