Weaver #63B Top Mount Scope Base for Marlin/Mossberg
Single-piece aluminum scope base for Marlin 336, 1894, 1895, 45, 30AS, 444, Camp 9, 308, 338, and Mossberg 640. Machined to tight tolerances with gloss black finish.
Fits: Marlin 1894, Marlin 1895, Marlin 336
Weaver #63B Top Mount Scope Base
The Weaver #63B is a time-tested, single-piece aluminum scope base designed for shooters who demand reliability and precision. This base represents the kind of straightforward engineering that has made Weaver a trusted name in firearms mounting for generations.
Key Features
- Precision machining to tight tolerances ensures a custom fit on your rifle
- Aluminum construction provides maximum strength while keeping weight minimal
- Gloss black finish resists corrosion and complements most rifle aesthetics
- Weaver cross-lock design secures rings firmly in place
- No gunsmithing required — installs with provided screws
Compatibility
This versatile base fits a wide range of popular lever-action and semi-automatic rifles:
- Marlin 336, 1894, 1895, 45, 30AS, 444, Camp 9, 308, and 338
- Mossberg 640
- Western Field 740
Why Choose the #63B?
When you mount a scope, you're trusting your base with accuracy and safety. The #63B delivers on both counts. Its rigid aluminum construction and precision fit mean your rings stay tight and your zero stays true. Whether you're hunting or target shooting, this base provides the solid foundation serious shooters expect.
Features
- aluminum
- for weaver rings
- compatible with select firearms
- available in sizes: #12, #14, #16, #19, #24, #35, #35m, #36, #36m, #402m, #40a, #410, #411, #413t, #417m, #418m, #46m, #55, #61, #61m, #62, #63b, #70, #82, #90, #93, # 95, #97, #to-09
- aluminum construction
- tight tolerances
- maximum strength
