A complete 5.56 upper assembly from Spike's Tactical on a 14.5 inch mid-length lightweight barrel. Built to the same tolerances as the uppers Spike's uses on its own complete rifles and function-test-fired before shipping. Features: Forged upper receiver 14.5 inch mid-length lightweight barrel Phosphate M16 complete bolt carrier group Test fired for function before shipping Fitment: AR-pattern lower receivers chambered in .223 Remington / 5.56 NATO. STATE RESTRICTION NOTICE This product may be regulated as an "assault weapon" feature or component (e.g., threaded barrel, muzzle device/compensator, or assembled upper) and may be restricted or prohibited in CA, CT, DC, HI, IL, MA, MD, NJ, NY, RI, VA, WA, and select municipalities. It is the buyer's responsibility to verify local, state, and federal laws before purchase. Orders that cannot ship to a restricted address will be canceled and refunded.