Our tried and proved accurate and reliable Airking mounts are made for rimfire, centerfire and airrifles. They fit 3/8" rails and are available in medium and high which fits most bell diameters. Available for 1" and 30mm tube diameters. This mount is made of one piece for extra strength and accuracy. Across the series these mounts are supplied with a recoil stop to minimize the tough impact of aririfles and other guns. Our standard 2 piece mount is manufactured as 3/8" mount for 1" scopes and fits well for all needs. Features: Black matte Available for 1" and 30mm tube diameter Dovetail 3/8 mounts One piece base for additional strength (Airking mounts only) Recoil stop (Airking mounts only)