Tough and ready. A premium scope base for your Winchester shotguns. These bases accept Weaver style scope rings. The design gives you maximum flexibility for positioning your scope rings and the placement of your scope overall – something very important with a shotgun. The machined alloy part won’t add unnecessary weight, but the overall rigidity of mounting will give you the kind of precision you are looking for. Accepts weaver style scope rings only.Machined weaver style rail for use as a base on your SX4, SX3 or SX2 ShotgunVery versatile for ring positioningSolid precision for accuracyWeight: 3.2 oz.