Description
If you've got a military Mauser 98 large-ring action and you're tired of fighting with old-school mounts, this EGW base is about as straightforward as it gets. It's a one-piece Picatinny rail made specifically for Mausers that still have the stripper clip hump, and it bolts into the factory 3-hole pattern to tie the top of the action together. That rigidity is a big part of why folks like it. A solid, flex-free mounting surface helps your scope hold zero shot after shot.
What Sets the EGW Mauser 98 3-Hole Base Apart
This one is machined from domestic 6061-T6 extruded aluminum, then tumbled, blasted, and Type II anodized in matte black so it wears well and looks right on a classic rifle. The full-length Picatinny cross slots are the real selling point here, since they let you slide your rings fore and aft to dial in eye relief exactly where you want it. There's also a milled channel down the center that trims weight, bringing the whole base in right around two ounces. The slots accept both Picatinny and Weaver-style rings, so you're not locked into one brand.
Fitment Notes for the Military Mauser 98
This is the military version, built for large-ring 98 actions that still have the stripper clip hump. It is a 0 MOA base, which EGW recommends for shooting out to roughly 500 yards since it keeps your scope's internal adjustment centered for an easy sight-in. The base sits about 0.4 inches high from the top of the receiver to the top of the rail. A good tip from folks who've installed these: level the rail off the front sight before you torque things down. With a ring height around 1.2 inches, many owners report being able to keep the factory safety and bolt handle working as-is.
Getting Your EGW Mauser 98 Base Mounted
The base ships ready to install with #6-48 x 1/4 screws and a T-10 bit in the package. EGW suggests torquing to 20 inch-pounds with a drop of blue threadlocker to keep everything put. It's ambidextrous thanks to the beveled design, and the extended length leaves plenty of room down the road if you ever want to run a longer scope, a night vision setup, or a thermal.
Key Specifications
- Manufacturer: EGW (Evolution Gun Works)
- Manufacturer Part Number: 47020
- UPC: 841370106837
- Model: Mauser 98 Large Ring 3-Hole (Military)
- Rail Type: One-Piece Picatinny
- Cant: 0 MOA
- Material: Domestic 6061-T6 Extruded Aluminum
- Finish: Matte Black Type II Anodized
- Center Spread: 4.275 in
- Overall Length: 6.670 in
- Height: 0.4 in (top of receiver to top of rail)
- Weight: Approximately 2 oz
- Ring Compatibility: Picatinny or Weaver rings
- Quick Disconnect Ring Compatible: No
- Handedness: Ambidextrous
- Torque Spec: 20 in/lbs
What’s Included
- EGW Mauser 98 Large Ring 3-Hole one-piece Picatinny base
- #6-48 x 1/4 mounting screws
- T-10 bit
Frequently Asked Questions
Which Mauser 98 does this EGW base fit?
This is the military version, made for large-ring Mauser 98 actions that still have the stripper clip hump and use the 3-hole pattern. It does not fit the Mauser 3000 L. EGW recommends measuring the hole spacing on your receiver against the published 4.275 inch center spread to confirm fit before mounting.
What does 0 MOA mean on this Mauser 98 Picatinny base?
0 MOA means the rail has no built-in forward cant, so it sits flat and level. EGW recommends a 0 MOA base for shooting out to roughly 500 yards because it keeps more of your scope's internal elevation adjustment centered for an easy sight-in. If you plan on stretching things way out past 500 yards, a canted 20 MOA option would be the better call.
What rings work with this EGW base?
The full-length cross slots are gauged to Picatinny spec, so they accept both Picatinny and Weaver-style rings. That gives you plenty of options and lets you slide the rings forward or back to nail down your eye relief. Note that it is not compatible with quick-disconnect rings.
Will the bolt handle and safety still clear with a scope mounted?
The base sits about 0.4 inches high from the receiver. Many owners report that pairing it with roughly 1.2 inch height rings lets them keep the factory safety and bolt handle working as-is. Clearance can vary a little depending on your specific rifle and scope, so it's worth test-fitting before final torque.





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