The EGW Ruger American Rimfire Picatinny Scope Base (brand part number 46170) mounts a Picatinny-pattern rail directly to a Ruger American Rimfire receiver. Evolution Gun Works machines the base from aluminum alloy and finishes it in matte black for a durable, corrosion-resistant mount, running 6.67 inches overall with a 2.513-inch center spread between the two middle mounting holes. The base ships with the included mounting hardware for installation. It’s made in the USA to EGW’s standard tolerances.

Key Specifications

• Machined from aluminum alloy for a strong, corrosion-resistant base.
• Finished in matte black to match most bolt-action rifle builds.
• Built specifically for the Ruger American Rimfire receiver.
• Runs 6.67 inches overall in length.
• Spaces the two middle mounting holes at a 2.513-inch center spread.
• Mounts with the included mounting hardware included.
• Requires Mil-Std 1913 Picatinny-pattern rings, sold separately.
• Sold as the base only, with no mounting rings included.
• Made in the USA to EGW’s standard tolerances.

Frequently Asked Questions

What rifle does this base fit? The Ruger American Rimfire, and no other action.

Are scope rings included? No, this is the base only; you’ll need a separate set of Picatinny-pattern rings.

Buy the EGW Ruger American Rimfire Picatinny Scope Base

Get a precisely fit, recoil-rated base for your Ruger American Rimfire. Order it from our Evolution Gun Works lineup, part of our scope accessories selection, at our Lubbock, Texas gun shop for fast, direct shipping.