DNZ's Freedom Reaper mount is lighter than comparable one-piece mounts with four times the threads and precision socket-head cap screws for strength and security. Precision machined from top-grade aluminum, the Freedom Reaper mount is custom made to fit your firearm and absorbs shock at a fraction of the weight. This model mounts on a standard Picatinny base.Feature: Precision machined from a solid block of top grade billet 6061T6 aluminumCustom made to fit each type of firearm and align perfectly with your rifle's receiverNo moving parts between the firearm and the scope67% lighter than comparable one-piece mounts with four times the threads and precision socket head cap screws for absolute strength and securityMOA mounts are tapered down on front for long range shooting, height will be about 0.03 inches lower on front ring than a standard straight mountAll ring screws are #6-40 x 5/8 inches long, they use a 7/64 inches allen wrenchThese mounts have a peep hole thru them so you can see your iron sightsMade in the USA