DNZ Game Reaper 2 2 Piece Mounting System for Barrett Fieldcraft (Any Action LH or RH)DNZ one piece mounting systems are precision machined from a solid block of top grade billet aluminum and custom made to fit each type of firearm and align perfectly with your rifles receiver. By using a one piece solution, you are ensuring there are no moving parts between the firearm and the scope. DNZ mounts are 67% lighter than comparable one piece mounts with four times the threads and precision socket head cap screws for absolute strength and