Leapers UTG Pro 34mm medium profile p.O.I Picatinny rings. Features: - medium profile p.O.I (precision optics interface) rings have a 32mm center height to fit optics with a 34mm tube, and up to a 63mm outer objective - square-shaped integral recoil stop interfacing with a Picatinny Slot via complete surface contact to eliminate the possibility of forward and aft movement from recoil vibrations - 2 piece ring set, each equipped with 4 top torx screws designed with a 22mm ring width - designed to fit on mil-spec 1913 Picatinny rail platforms - machined from 6061-T6 aluminum alloy and 4605 steel with matte black hard coat anodize - UTG Pro original snag-free contoured profile with reduced weight and size. The innovative p.O.I (precision optics interface) addresses 3 of the most critical areas in scope rings: - progressively machined for a precise inner ring surface to achieve a seamless ring-to-scope interaction - low profile and flush-fitting locking side plate controlled by dual spring loaded guide rods interfacing with the rail with torx screw locking to ensure secure and repeatable zero hold. Specifications: - material: aluminum/steel - rail type: Picatinny - profile level: medium - ring diameter: 34mm - ring width: 22mm - maximum scope outer diameter: 63mm - screws per ring: 4 - color: black