$22.74
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Availability: In Stock
The Weaver #3B side-mount scope base is a specialized optics mounting solution designed for rifles where a traditional top-mounted scope won't work or isn't ideal. This gloss-finished base mounts directly to the side of the receiver, giving you the clearance you need for smooth bolt operation and hassle-free loading and ejection — a real advantage when you're working with older military actions, lever guns, or other firearms where receiver geometry limits traditional mounting options. If you're restoring a vintage rifle or simply need an unconventional mounting solution, a side-mount base opens up scope options that would otherwise be impossible.
Weaver side-mount bases come in different lengths to match your scope's objective bell diameter and eye relief needs. The #3B specifically fits Sears Models 54 and 100, as well as Winchester Model 94 rifles manufactured after 1964. Like all Weaver side-mount bases, the #3B accepts Weaver side-mount rings only — make sure your rings match this system before ordering. The gloss finish resists corrosion while maintaining a classic look that suits hunting rifles of all eras.
Side mounting isn't common in modern hunting, but it solves real problems for lever-action and older bolt-action shooters. Whether you're building a truck gun, restoring a family heirloom, or setting up a specialized rifle where traditional scope rails don't exist, this base gives you a proven way to mount quality optics without modification or gunsmithing.
| Brand | Weaver |
| Model | #3B Side Mount Base |
| Finish | Gloss |
| Compatible Rifles | Sears Models 54, 100; Winchester Model 94 (post-1964) |
| Ring Type Required | Weaver side-mount rings |
The #3B is designed specifically for Sears Models 54 and 100, and Winchester Model 94 rifles manufactured after 1964. Do not use on other rifle models — verify your rifle's make and model before ordering.
Side-mount bases accept Weaver side-mount rings only. Standard Weaver or picatinny rings will not work with this base. Confirm your rings are designated for side-mount use.
Side mounting provides clearance for bolt handles and makes loading and ejection easier on rifles where receiver design, profile, or height makes a conventional top-mounted scope problematic or impossible. It's particularly useful on lever-actions and vintage bolt rifles.
The #3B is the base only. You must purchase Weaver side-mount rings separately to complete your mounting system.
SKU: 114463561 • Width: 3.4in • Height: 1in • Depth: 7.4in • Weight: 0.08oz
Availability: In Stock
The Weaver #3B side-mount scope base is a specialized optics mounting solution designed for rifles where a traditional top-mounted scope won't work or isn't ideal. This gloss-finished base mounts directly to the side of the receiver, giving you the clearance you need for smooth bolt operation and hassle-free loading and ejection — a real advantage when you're working with older military actions, lever guns, or other firearms where receiver geometry limits traditional mounting options. If you're restoring a vintage rifle or simply need an unconventional mounting solution, a side-mount base opens up scope options that would otherwise be impossible.
Weaver side-mount bases come in different lengths to match your scope's objective bell diameter and eye relief needs. The #3B specifically fits Sears Models 54 and 100, as well as Winchester Model 94 rifles manufactured after 1964. Like all Weaver side-mount bases, the #3B accepts Weaver side-mount rings only — make sure your rings match this system before ordering. The gloss finish resists corrosion while maintaining a classic look that suits hunting rifles of all eras.
Side mounting isn't common in modern hunting, but it solves real problems for lever-action and older bolt-action shooters. Whether you're building a truck gun, restoring a family heirloom, or setting up a specialized rifle where traditional scope rails don't exist, this base gives you a proven way to mount quality optics without modification or gunsmithing.
| Brand | Weaver |
| Model | #3B Side Mount Base |
| Finish | Gloss |
| Compatible Rifles | Sears Models 54, 100; Winchester Model 94 (post-1964) |
| Ring Type Required | Weaver side-mount rings |
The #3B is designed specifically for Sears Models 54 and 100, and Winchester Model 94 rifles manufactured after 1964. Do not use on other rifle models — verify your rifle's make and model before ordering.
Side-mount bases accept Weaver side-mount rings only. Standard Weaver or picatinny rings will not work with this base. Confirm your rings are designated for side-mount use.
Side mounting provides clearance for bolt handles and makes loading and ejection easier on rifles where receiver design, profile, or height makes a conventional top-mounted scope problematic or impossible. It's particularly useful on lever-actions and vintage bolt rifles.
The #3B is the base only. You must purchase Weaver side-mount rings separately to complete your mounting system.
SKU: 114463561 • Width: 3.4in • Height: 1in • Depth: 7.4in • Weight: 0.08oz