The Weaver ™ Top Aluminum Base fastens optics to your firearm securely. This Top Aluminum Base is machined to tight tolerances providing a custom fit. The Weaver ™ Top Aluminum Base produces maximum strength for rings to hold tight.

• Fastens optics securely
• Machined to tight tolerances providing custom fit
• Produces maximum strength for rings to hold tight

• Marlin 45, 30AS 336 (all models) 444, 1893, 1895, Camp 9, 922M, 989, .22 Auto
• Marlin 1894
• Mossberg 640
• Western Field 730