Sprint to the finish line with your next rifle build and get the TacFire AR-10 .308 / 7.62x51 Unassembled Rifle Kit w/ Lower Parts Kit. This kit includes a .308 / 7.62x51 bolt carrier group (BCG), charging handle, stripped upper receiver, forward assist and port door, complete lower parts kit with fire control unit and pistol grip, gas tube and gas block, barrel with 1:10 twist and 5/8x24 threads, standard bird cage muzzle brake with crush washer, M-LOK® handguard, buffer kit (buffer spring, buffer weight, buffer tube, castle nut, and end plate), and adjustable butt stock.