Weaver Side-Mount Scope Base #3B Gloss - Precision Optics Mounting Solution
$22.48
$29.95
(You save
$7.47
)
- Type:
- Side Mount
- Firearm Make Fit:
- Winchester
- Finish-Color:
- Black - Gloss
- Mount Type:
- To Receiver
- Pieces:
- 1
- Model:
- Detachable Side Mount #3B
- Material:
- Aluminum
- Rings Included:
- No
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.
Key Features
- Side-mount design provides clearance for bolt handles and receiver geometry
- Enables easy loading, ejection, and round feeding
- Gloss finish for corrosion resistance
- Accepts Weaver side-mount rings only
- Fits Sears Models 54 and 100, Winchester Model 94 (post-1964)
Specifications
| 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 |
Frequently Asked Questions
What rifles does the Weaver #3B side-mount base fit?
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.
What scope rings do I need with this side-mount base?
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.
Why would I choose a side-mount base instead of a traditional top mount?
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.
Does the #3B come with rings?
The #3B is the base only. You must purchase Weaver side-mount rings separately to complete your mounting system.
