New CMMG 16" mid-length upper. This upper comes with mid-length handguards and is complete with bolt, carrier and charging handle. CMMG semi auto bolt carriers have the shrouded firing pin to protect against hammer wear. Upper receivers are T marked and include extended feed ramp cuts. Features include government contour barrel, 11 degree recessed target crown, mid-length gas system, chrome lined 5.56mm chamber and bore, 1/7 twist, parkerizing under "F" marked forged front sight base and magnetic particle testing on every barrel. Barrel is marked CMMG MPC 5.56 NATO 1/7.