Seekins Precision 34mm Tube Riflescope Rings,.92in Low, 4 Cap Screw 34 mm tube, .92 low, 4 cap screw Perfectly CNC Machined 7075-T6 Billet 1913 Picatinny Mil-Spec, Center lug machined into place Type III Class 2 Hardcoat Anodized Finish Grade 8 T25 Torx Screws