At 17mm this is a medium when compared to other leading brands Rimfire Rifle Mounts Tier One 11mm Dovetail Scope Rings 34mm Matte Black Medium 30mm Scope Mounts For Rimfire Note package states Low this is a little misleading, it is only low compared to the higher BKL 300/301 models. 3 - BKLs clamping system self aligns as it tightens down on 3/8” and 11mm dovetails. Note package states Low which is a little misleading, they are only Low compared to the higher BKL 300/301 models. All of our products center up as the pressure from the clamping system pulls down as it clamps in. 2 piece mount rings for 30mm tube scopes for fitting on 3/8 and 9-11mm airgun and rimfire dovetail base rails., Height - 0., 680 - 17mm base to bottom of ring equates to maximum scope outer objective casing diameter of 63mm. 2 - The inside diameter where the rings clamp together is radiused to prevent scope damage. BKL uses the same #8-32 screws for both scope ring and base clamps. BKL 3" Long Mount, 1" Rings, Dovetail, Silver | Airgun Depot BKL 303 0.6 Long Dovetail Scope Ring - Low - Single is designed for the shooter who needs stability and prefers independent rings. Model 303 is for 30mm scope tubes and designed to fit all standard 3/8 guns and 11mm airgun dovetail rails The inside diameter where the rings clamp together is radiused to prevent scope damage BKL Single 30mm Double Strap Ring, 3/8 or 11mm Dovetail, 1.263 Long One 9/64 hex wrench tightens all. Manufactured from aircraft grade aluminium on state of the art CNC machinery in Texas, USA
