TacFire AR-15 16" 5.56 Unassembled Upper Receiver Kit w/ Lower Parts Kit

Engineered for reliable performance at an affordable price, the TacFire AR-15 16" 5.56 Unassembled Upper Receiver Kit with Lower Parts Kit is a solid choice for your next custom rifle build. Complete with everything you need to get started (except the lower receiver), the kit includes a streamlined upper receiver, bolt carrier group, M-LOK free-floating handguard, and a 1/2x28 threaded 4150 chrome moly vanadium steel barrel with a 1:8 twist rate for superior accuracy potential with a variety of bullet weights. The Mil-Spec carbine-length buffer tube assembly with a standard weight buffer ensures smooth cycling, and the complete AR-15 lower parts kit (LPK) includes Mil-Spec components for quality performance right out of the box.