$10.30
Availability: In Stock
The Weaver #63B Top Mount 1 Piece Base is a single-piece aluminum scope mount designed to simplify setup on a wide variety of rifle platforms. Unlike two-piece base systems that require precise alignment, this one-piece design eliminates that variable—once it's secured to your rifle, your scope rings sit in a fixed, parallel relationship to your bore. That consistency matters whether you're dialing in at the range or mounting glass on a hunting rifle. The silver finish blends with most modern rifle aesthetics while holding up to field use.
Built from aluminum, the #63B keeps overall weight minimal, which is especially valuable on lighter hunting rifles where every ounce counts. The top-mount design places the base directly atop your receiver, making it compatible with a wide range of rifle actions—both modern and older designs. Shotgun and long-range handgun setups are supported as well, making the #63B a practical choice if you're experimenting with optics across different firearm types.
Installation is straightforward: mount it to your rifle's receiver using appropriate fasteners, then add your rings and scope. If you're building a two-piece base system for a specific rifle model, note that base pair sets are available for some applications; check your rifle model against Weaver's base chart to confirm whether the #63B is the right choice for your gun, or whether a paired set is recommended for your platform.
| Base Type | One-piece top mount |
| Material | Aluminum |
| Finish | Silver |
| Model Number | #63B |
The #63B is a single one-piece base. Some rifle models are offered as two-piece base pair sets (marked in Weaver's catalog); verify your specific rifle model to confirm whether the #63B alone or a paired set is appropriate for your firearm.
The #63B is engineered to fit a wide range of modern and older rifle platforms, as well as shotguns and long-range handguns. Always cross-reference your exact rifle model with Weaver's compatibility guide to ensure proper fit.
Yes, this is the base only. You'll need to purchase compatible scope rings and your optic separately.
SKU: 114463284 • Width: 3.3in • Height: 1in • Depth: 7.4in • Weight: 0.13oz
Availability: In Stock
The Weaver #63B Top Mount 1 Piece Base is a single-piece aluminum scope mount designed to simplify setup on a wide variety of rifle platforms. Unlike two-piece base systems that require precise alignment, this one-piece design eliminates that variable—once it's secured to your rifle, your scope rings sit in a fixed, parallel relationship to your bore. That consistency matters whether you're dialing in at the range or mounting glass on a hunting rifle. The silver finish blends with most modern rifle aesthetics while holding up to field use.
Built from aluminum, the #63B keeps overall weight minimal, which is especially valuable on lighter hunting rifles where every ounce counts. The top-mount design places the base directly atop your receiver, making it compatible with a wide range of rifle actions—both modern and older designs. Shotgun and long-range handgun setups are supported as well, making the #63B a practical choice if you're experimenting with optics across different firearm types.
Installation is straightforward: mount it to your rifle's receiver using appropriate fasteners, then add your rings and scope. If you're building a two-piece base system for a specific rifle model, note that base pair sets are available for some applications; check your rifle model against Weaver's base chart to confirm whether the #63B is the right choice for your gun, or whether a paired set is recommended for your platform.
| Base Type | One-piece top mount |
| Material | Aluminum |
| Finish | Silver |
| Model Number | #63B |
The #63B is a single one-piece base. Some rifle models are offered as two-piece base pair sets (marked in Weaver's catalog); verify your specific rifle model to confirm whether the #63B alone or a paired set is appropriate for your firearm.
The #63B is engineered to fit a wide range of modern and older rifle platforms, as well as shotguns and long-range handguns. Always cross-reference your exact rifle model with Weaver's compatibility guide to ensure proper fit.
Yes, this is the base only. You'll need to purchase compatible scope rings and your optic separately.
SKU: 114463284 • Width: 3.3in • Height: 1in • Depth: 7.4in • Weight: 0.13oz