Game Reaper 2 signature series two piece scope mounts; Fits long and short actions, some super short actions - left and right hand guns; Each ring and base is machined from a solid block of top-grade billet 6061T6 aluminum; Internal ring and base design allows for extra eye relief adjustment; Eliminates or reduces scope damage from tightening rings; No lapping required; Eliminates the need for windage screws that can work loose and cause problems; No moving parts between the firearm and the scope; Up to four times the threads of other mounts for absolute strength and security; Absorbs shock and withstands temperature extremes better than steel mounts at a fraction of the weight