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The EGW Marlin 917, 982 scope base gives you a one-piece Picatinny rail solution for these classic .22 rimfire rifles without any gunsmithing. If you're looking to upgrade optics on a Marlin 917 or 982 but don't want to drill and tap your receiver, this direct-fit base bolts to the factory scope mount holes and gives you full tactical flexibility in seconds. Built from 6061 T6 extruded aluminum, it's lightweight and rigid enough for the modest recoil of rimfire use—and tough enough to keep zero through repeated mounting and dismounting cycles.
The Picatinny rail accepts both Picatinny and Weaver rings, so you're not locked into any single ring manufacturer or height. That flexibility in eye relief and optic choice is genuinely useful if you already have rings in your parts box or prefer a specific brand. The cross-slots are precision gauged to MIL-STD 1913 specs to within ±.002 inch, so rings fit snug and repeatable every time. The tactical profile includes a milled center channel for weight savings—a nice touch on a rifle you'll be carrying all day.
Installation is straightforward: the base comes with socket head Torx screws and an included wrench. EGW specs 20 inch-pounds of torque and a small drop of blue Loctite to keep everything locked in place. If you run your rimfire hard at the range or in the field, this no-hassle upgrade means you can mount quality glass without any permanent modifications to your gun.
Key Features
- One-piece Picatinny scope rail—no drilling or tapping required
- Direct-fit to factory scope mount holes on Marlin 917 and 982
- Accepts both Picatinny and Weaver scope rings for maximum compatibility
- Precision-machined 6061 T6 extruded aluminum construction
- Milled center channel reduces weight without sacrificing rigidity
- MIL-STD 1913 cross-slot spacing (±.002" tolerance) ensures consistent ring fit
- Includes socket head Torx screws and wrench for installation
- Allows fast, tool-free changes to eye relief and optic selection
Specifications
| Brand | EGW |
| Compatibility | Marlin 917, 982 |
| Mount Type | Picatinny Rail (accepts Picatinny or Weaver rings) |
| Material | 6061 T6 Extruded Aluminum |
| Slot Spacing Standard | MIL-STD 1913 (±.002") |
| Installation | Factory scope mount hole pattern—no drilling or tapping |
| Fasteners | Socket head Torx screws (wrench included) |
| Recommended Torque | 20 inch-pounds |
Frequently Asked Questions
Will this base fit my Marlin 917 or 982 rifle?
Yes. The EGW base is drilled to match the factory scope mount hole pattern on Marlin 917 and 982 receivers, so it bolts on directly without modification. No gunsmithing needed.
What scope rings do I need?
This base accepts both Picatinny and Weaver-pattern scope rings, giving you flexibility in ring brand and height. Choose whichever rings match your optic diameter and desired eye relief.
What's included in the box?
The base comes with socket head Torx screws and an included wrench for installation. EGW recommends using 20 inch-pounds of torque and a small drop of blue Loctite when mounting.
Can I change my optic or adjust eye relief without removing the base?
Yes. The Picatinny rail design allows you to move your rings and optic along the rail to change eye relief, or swap optics entirely by just changing the rings—the base stays permanently mounted to your rifle.
