This AR-15 Rifle kit is headspaced, and ready to mount to your lower receiver. Once you have an assembled lower with the parts provided in the kit, and mount the upper, this is an operational firearm 5.56mm.
This AR-15 Kit is the same design carried by millions of soldiers around the free world. All parts are anodized or parkerized for maximum durability. As with all our rifle kits, our armorers can incorporate dozens of options to suit your particular need or mission.