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Weaver Detachable Top-Mount Base 1Pc Marlin/Mossberg/Western 63B 48069
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$14.99
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SKU: 48069-076683480699
Overview
This top-mount base is intended for hunters setting up compatible Marlin, Mossberg, and Western Field rifles with a Weaver Detachable Ring system. It is machined to tight tolerances for a custom fit and includes a square cut notch designed to mate with the ring’s cross bolt, helping the mount stay secure under recoil. Custom hardened fastening screws are included. It is a practical choice for building a straightforward optic-ready setup on the listed rifle models without unnecessary complexity.
Why Hunters Choose the Weaver
Fits Wide
Range of Marlin, Mossberg, and
Machined Tight
Tolerances for a custom fit
Square-cut Notch
Weaver Detachable Rings' cross bolt
Includes Custom
Hardened fastening screws
No. 63b
Mount for compatible rifles
Key Features
- Weaver No. 63B detachable top-mount base for compatible Marlin, Mossberg, and Western Field rifles.
- Machined to tight tolerances for a custom fit.
- Square-cut notch is designed to mate with Weaver Detachable Ring cross bolts.
- Includes custom hardened fastening screws.
- Fits Marlin 9, 45, 30AS, 36, 62, 93, 336, 375, and 444 models.
- Also fits Marlin 1893/1894/1895, Glenfield 30, Zane Grey, Marlin 922M and 989M, Mossberg 640, and Western Field 740.
Best Used For
- Hunters mounting optics on compatible Marlin, Mossberg, or Western Field rifles
- Shooters needing a detachable top-mount base with a custom-fit, tight-tolerance design
- Owners of listed Marlin lever-action and rimfire models seeking a Weaver No. 63B mount
- Users wanting included hardened fastening screws for a straightforward base installation
Specifications
| Custom Hardened Fastening Screws Included | Yes |
|---|---|
| Fits | Marlin 9, 45, 30AS, 36, 62, 93, 336, 375 and 444; Marlin 1893/1894/1895; Glenfield 30; Zane Grey; Marlin 922M and 989; Mossberg 640; Western Field 740 |
| Machined To Tight Tolerances | Yes |
| Model Number | 63B |
| Mount Type | Detachable Top-Mount Base |
| Number Of Pieces | 1 |
| Square Cut Notch | Yes |
Pros
- Fits a wide range of Marlin, Mossberg, and Western Field models.
- Machined to tight tolerances for a custom fit.
- Square-cut notch mates with Weaver Detachable Rings' cross bolt.
- Includes custom hardened fastening screws.
- No. 63B mount for compatible rifles.
Considerations & Trade-offs
- Designed for a defined set of Marlin, Mossberg, and Western Field models, so fit compatibility should be checked carefully before purchase.
- This is a top-mount base only; rings and other mounting components are not included in the provided product data.
- The product is positioned around recoil management and tight tolerances, but the listing does not provide material or finish details to evaluate long-term wear or environmental resistance.
- Model-specific fit can be an advantage for secure mounting, but it also means this base is not a universal option across other firearms.
Suggested Comparisons
- Scope mounting base for compatible Marlin, Mossberg, and Western Field rifles
- One-piece top-mount base
- Detachable ring mounting system
Suggested Accessories
- Scope rings
- Rifle scope
- Mounting screws
- Gun cleaning kit
Frequently Asked Questions
What firearms does the Weaver No. 63B top-mount base fit?
According to the product data, it fits Marlin 9, 45, 30AS, 36, 62, 93, 336, 375, and 444; Marlin 1893/1894/1895; Glenfield 30 and Zane Grey; Marlin 922M and 989M; Mossberg 640; and Western Field 740.
Is this a one-piece base?
Yes. The product title identifies it as a 1-piece top-mount base.
What is included with the base?
The description says custom hardened fastening screws come with every Weaver base.
How is the base designed to work with Weaver rings?
The description states it uses a square cut notch that precisely mates to the cross bolt in every Weaver Detachable Ring.
Does the product data specify the material or finish of the base?
No. The provided information does not list the base material or finish.