Weaver 2-Piece Top Mount Base Pair for Ruger 10/22

The Weaver 2-Piece Top Mount Base Pair (Model 503/504) is a matched front-and-rear mounting solution designed for the Ruger 10/22. Made from aluminum with a matte black finish, these bases accept Weaver top-mount cross-lock rings and use a cross-lock channel for a secure fit. Their compact, lightweight profile preserves access to the receiver while providing a stable platform for optics and sighting accessories.

Key Specifications

• This set is a 2-piece matched pair for front and rear mounting.
• The material is ALUMINUM for a lightweight, durable platform.
• The finish is BLACK MATTE.
• Application is specified as RUGER 10/22.
• The model number is 503/504.
• Elevation is listed as 0 MOA.
• The bases accept Weaver top mount cross-lock rings.
• Dimensions are 0.80 x 1.85 x 5.45 (as provided).
• Rings included: No.

These Weaver base pairs deliver a clean, dependable mounting option for shooters who want a low-profile, repeatable platform for optics on the Ruger 10/22. The combination of aerodynamic profile, cross-lock retention, and aluminum construction makes them suitable for range work, target shooting, and general rimfire use where consistent scope alignment matters.