SNIPER Air Rifle .22 30mm Integral Hi-Profile Scope Rings, 21mm Saddle Height/Up to 70mm Bell, DOVETAIL Sniper High Profile Dovetail with 30mm Diameter Scope Rings Complete with Stop-pin for Rock Solid Application Precision CNC Machined from Aircraft-Grade Aluminum Alloy with Anodized Black Matte Finish Reversible Locking Side Plate to Fit Full Range of Dovetail Widths 4 Screws Per Ring for Extra Security in Holding Zero