Each Weaver base is machined to tight tolerances for a custom fit. These aluminum bases offer maximum strength for rings to hold tight.

Used as FRONT base on Marlin 980; Remington 514, 550; Stevens 57, 76, 417 1/2, 762; Winchester 74

Used as REAR base on:  Marlin 80, 81, 980; Mossberg 25, 26, 42, 45, 46, 46A, 46B, 46 with 13/16" dia. bbls, 46M, 140, 142, 146 late models 45 & 46 with 3/4"dia bbls; Remington 514, 550; Winchester 47, 57, 69, 69a, 72, 74