Each Weaver base is machined to tight tolerances for a custom fit. These Aluminum bases offer maximum strength for rings to hold tight. Custom hardened fastening screws come with every Weaver base Square cut notch eliminates recoil Fits:Marlin 9, 45, 30AS, 36, 62, 93, 336, 375 and 444Marlin 1893/1894/1895, Glenfield 30, Zane Grey and Camp-9 CarbineMarlin 922M and 989Mossberg 640Western Field 740
