BCA AR-15 Half Upper Assembly: 16" Parkerized M4 Contour Barrel, 5.56 NATO Caliber, 1:7 Twist w/ 15" Mlok Rail

The BCA Half upper assembly has a 16" 4150 parkerized, 1:7 twist rate, 15” Mlok rail and upper receiver (BCG and charging handle not included). This upper is chambered in .556 and machined with M4 feed ramps (both in the receiver and barrel extension)

The BCA half upper assembly, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and upper receiver assemblies includes test firing prior to approval and shipment. This upper assembly is also backed by our BCA limited lifetime warranty. Choose an upper assembly designed by a U.S. company made in the U.S.A. Choose right, choose accurate, and choose BCA.