AR-15 Complete Pistol Upper Assembly, 8.5″ 4150 Parkerized M4 Contour Barrel, 300 Blackout, Pistol Length Gas System, 1:8 Twist w/ 7″ MLOK Rail
CBC AR-15 Complete Uppers offer superior quality, dependability, and performance that will satisfy the most demanding shooter. Our custom in-house manufacturing capability provide a wide selection of complete AR-15 upper assemblies in a variety of styles and lengths. Whatever you need, CBC has what you're looking for. Better yet, all CBC AR-15 complete uppers are custom built-to-order enabling us to provide you with the best prices you will find. The quality of our AR-15 complete uppers are backed by our Lifetime Warranty - if any CBC upper assembly becomes defective, we will repair or replace it at no charge. Get your complete AR-15 upper at CBC today and save with free shipping!