+3 Weaver Top Mount Aluminum Base 47M 48503 C $6.99 The matte black Top Mount Base #47M from Weaver has been machined to tight tolerances for a custom fit. The aluminum base offers maximum strength so that the rings will hold tight. In stock Quantity: 1 Add to Bag Product Details UPC: 076683485038 Brand: Weaver Save this product for later Favorite