Weaver Standard Top Mount Aluminum Scope Base - Gloss Black - #61 - Octagon Flat Receiver FRONT/REAR

The Weaver Standard Top Mount Aluminum Scope Base in gloss black finish (model 48061) is a one-piece mounting solution designed for rifles with octagon flat receivers. This base serves as the foundation for Weaver-compatible optics systems, offering a straightforward, non-destructive installation method that requires no firearm modifications. The aluminum construction combined with the gloss black finish provides a durable platform resistant to typical field wear while maintaining a professional appearance on the receiver.

Weaver bases function as intermediate mounting systems between your rifle receiver and scope rings or other optical accessories. The top mount configuration places the mounting surface on the upper receiver, allowing direct attachment of Weaver-slotted rings without rail systems. This #61 model is specifically indexed for octagon flat receiver designs, ensuring proper alignment and secure seating. The base ships with precision-threaded fasteners engineered to mate with receiver threads, eliminating the need for aftermarket hardware substitution. Proper installation requires tight fastening to prevent any shift during firing cycles, which could compromise zero.

This mounting base suits shooters building or maintaining rifles that accept top-mounted optics—common in precision rifle builds, hunting setups, and legacy receiver configurations. The Weaver standard ecosystem provides broad accessory compatibility and is recognized across the industry as a proven alternative to Picatinny rails. Buyers should verify their specific receiver profile matches the octagon flat specification before ordering, as receiver geometry directly affects base seating. The minimal 0.03 lb weight adds negligible mass to the rifle system.