The EGW Ruger No. 1 Varmint 0 MOA scope base is a one-piece Picatinny rail system designed specifically for Ruger No. 1 rifles. If you're running a scoped varmint rig, this mount gives you the ability to upgrade or adjust your optic setup without any gunsmithing—no drilling, no tapping required. It uses your rifle's existing factory scope mount holes for a straightforward installation that respects your gun's original design.
Built from extruded 6061 T6 aluminum and machined to tight tolerances, this tactical-profile mount is rigid enough to hold zero through repeated shooting sessions. The one-piece design eliminates the shifting and flex that can come with two-piece bases, which matters when you're dialing in shots at distance or chasing prairie dogs across a flat. The integrated Picatinny rail accepts both Picatinny and Weaver rings, so you're not locked into one ring manufacturer and can dial in eye relief exactly where you need it. The full-width cross-slots are gauged to MIL-STD 1913 specs, maintaining the precision fit that keeps your scope stable.
Weight matters if you're carrying your rifle all day, and EGW kept that in mind—a milled center channel through the base reduces heft without compromising strength. Installation is straightforward: the package includes socket head Torx screws and the wrench you'll need. EGW recommends 20 inch-pounds of torque and a drop of blue threadlocker for a permanent, secure fit that won't loosen under recoil.
Key Features
- One-piece design fits Ruger No. 1 rifles using existing factory scope holes—no drilling or tapping
- Integrated Picatinny rail accepts both Picatinny and Weaver scope rings for flexible optic choice
- Precision-machined 6061 T6 aluminum with MIL-STD 1913 gauge to +/-.002" tolerances
- Milled center channel reduces weight while maintaining rigid one-piece construction
- Includes socket head Torx screws and torque wrench for installation
- 0 MOA configuration provides a flat base for your chosen optic setup
Specifications
| Manufacturer | EGW (EuroOptic) |
| Product Type | One-Piece Picatinny Scope Base |
| Fits | Ruger No. 1 Varmint |
| Rail Standard | Picatinny (MIL-STD 1913) |
| Accepts | Picatinny and Weaver scope rings |
| Material | 6061 T6 Aluminum, extruded and machined |
| MOA Configuration | 0 MOA |
| Torque Specification | 20 inch-pounds (with blue threadlocker recommended) |
| Slot Tolerance | +/-.002" per MIL-STD 1913 |
| Included Hardware | Socket head Torx screws and wrench |
Frequently Asked Questions
Will this base fit my Ruger No. 1 without gunsmithing?
Yes. The EGW Ruger No. 1 Varmint base is designed to use your rifle's existing factory scope mount holes—no drilling or tapping required for installation.
What rings do I need to use with this base?
The Picatinny rail accepts both Picatinny-spec and Weaver-compatible scope rings, giving you flexibility in ring choice and allowing you to dial in the eye relief that works best for your optic and shooting position.
How do I install it, and what torque should I use?
The base comes with socket head Torx screws and a wrench for installation. EGW recommends torquing the mounting screws to 20 inch-pounds and applying a drop of blue threadlocker to ensure the base stays secure under recoil.
Is this a one-piece or two-piece base?
This is a one-piece Picatinny rail base, which provides a more rigid platform than split two-piece bases and eliminates potential shifting between front and rear sections.

