80% AR-15 Lower Receiver by Daytona Tactical are machined from 7075 T6 forgings or billet. The 80 percent AR 15 lower receiver needs to be finished by you, the customer to make it a firearm. We Carry a variety of finishes on our 80 lowers. Daytona also is your supplier for AR-15 Lower receiver jigs and the AR parts to complete your AR15 Rifle or pistol from the start of the 80 lower to the finished product.