For the most reliable optics and mounting systems choose Weaver. The Weaver name is synonymous with high-quality and affordable shooting sports products. Nobody makes bases to fit as many guns as Weaver. Yet each base is machined to tight tolerances for a custom fit. They're designed to fight the effects of recoil with a square cut notch that precisely mates to the sturdy cross bolt in every Weaver Detachable Ring. Custom hardened fastening screws come with every Weaver base.Specifications and Features:Manufacturer Number: 48062Weaver Detachable Top-Mount Base Ithaca Remington 740/742/760 BlackNo. 62 mount1 pieceAluminumPrecision builtColor: BlackFits: CIL 871Ithaca Deerslayer, 37 and 87Remington 740, 742 and 760Savage 170S&W 41