Egw Mauser 98 Large Ring 3-Hole 1-Pc Picatinny Base 0 Moa
The EGW Mauser 98 Large Ring 3-Hole 1-Pc Picatinny Base gives you a solid, flexible foundation for mounting optics on your Mauser 98 large ring action. Built from 6061 T6 aluminum and machined to strict MIL-STD 1913 specifications, this single-piece base accepts both Picatinny and Weaver rings—meaning you're not locked into one ring ecosystem. The three-hole attachment pattern distributes load effectively across the receiver, and the 0 MOA offset keeps your zero true without artificial cant.
What makes this base stand out is the flexibility it gives you. The Picatinny slots let you adjust eye relief quickly without switching bases, and that matters whether you're fine-tuning a hunting scope or setting up a tactical rig. The milled center channel keeps weight down without sacrificing rigidity—a genuine advantage if you're building a rifle you'll actually carry. Precision machining to +/-.002" tolerance means your rings will sit tight and consistent.
Installation is straightforward: the base ships with socket head Torx screws and the wrench you need. EGW's recommendation is simple—20 inch-pounds of torque and a small dab of blue loctite. Take your time, follow that spec, and you're looking at a base that'll hold zero season after season.
Key Features
- Single-piece design for maximum rigidity and simplified setup
- Picatinny slot-and-rail system lets you adjust eye relief and switch rings fast
- Accepts both Picatinny and Weaver scope rings for total compatibility
- 6061 T6 aluminum construction machined to MIL-STD 1913 specs (±.002" tolerance)
- Milled center channel reduces weight without compromising strength
- Includes socket head Torx screws and wrench
- Engineered for Mauser 98 large ring actions with 3-hole pattern
Specifications
| Brand | EGW |
| Rifle Action | Mauser 98 Large Ring |
| Mounting Pattern | 3-Hole |
| Configuration | 1-Piece |
| Rail Type | Picatinny |
| MOA Offset | 0 MOA |
| Material | 6061 T6 Aluminum |
| Tolerance | ±.002" (MIL-STD 1913) |
| Ring Compatibility | Picatinny and Weaver |
| Included Hardware | Socket Head Torx Screws and Wrench |
| Recommended Torque | 20 inch-pounds with blue loctite |
Frequently Asked Questions
Will this base work with both Picatinny and Weaver rings?
Yes. The EGW base accepts both Picatinny and Weaver scope rings, so you have flexibility in ring choice and can use existing rings you may already own.
Can I adjust eye relief without changing bases?
Yes. The Picatinny slot-and-rail system lets you slide your rings forward or back to adjust eye relief quickly and easily, and those adjustments won't affect your zero.
What torque spec should I use when installing?
EGW recommends 20 inch-pounds of torque. Apply a small amount of blue loctite to the screw threads before installing. The base ships with socket head Torx screws and the wrench needed for installation.
Is this base designed for large ring or small ring Mauser actions?
This base is engineered specifically for Mauser 98 large ring actions with a 3-hole mounting pattern. It will not fit small ring actions.

