Everything you need to mount your riflescope. It includes 1" medium Quick Detach Rings for objective lens diameters thru 40mm. This Weaver Mounting System includes Rings, Mounting Base, and the needed screws. This scope mount system fits: Marlin 9, 36, 45, 62, 63, 93, 336, 375, 444, 1893, 1895, Glenfield 30, Zane Grey, 1894 Mossberg 640 Western Field 740 Manufactures Website Address www.weaveroptics.com Warranty Information Weavers Limited Lifetime Warranty: Blount warrants Weaver products to be free of defects in materials and workmanship for as long as it is owned by its original owner. Repair/Replacement will be done when returned without charge, except for shipping.