This Weaver Top Mount Base, application #46 (Weaver part no. 48046), is a 1-piece top mount base machined from aluminum for the Ruger American. Weaver finishes it in black gloss and machines it to tight tolerances so it seats flush and true against the receiver, giving a solid foundation for Weaver-style scope rings. It mounts using the rifle’s existing factory screw holes, so there’s no drilling or permanent modification needed. For shooters running a Ruger American that came from the factory without an optics rail, this base is the direct path to mounting glass.

Key Specifications

• Machined specifically for the Ruger American, listed as Weaver application #46.
• Built as a 1-piece top mount base, matching that mounting style to the receiver.
• Machined from Aluminum for a durable, corrosion-resistant base.
• Finished in Black Gloss to match most factory barreled actions.
• Mounts directly to the receiver using the rifle’s factory screw holes.
• Cut to accept Weaver-style scope rings, which are sold separately.
• Built for bolt action rifles, matching this receiver pattern’s action type.
• Machined to tight tolerances for a custom, repeatable fit against the receiver.
• Cut for maximum ring contact area, so rings clamp down securely under recoil.
• Ships at a light 0.05 lb, adding almost nothing to your order.

Frequently Asked Questions

What rifle does this base fit? It’s machined specifically for the Ruger American, application #46 on Weaver’s fit chart.

Are scope rings included? No, this is the base only; pick up a set of Weaver-style rings separately to complete the mount.

Do I need to drill or modify my receiver to install this? No, it bolts directly to the Ruger American’s factory screw holes with no drilling or gunsmithing required.

Buy the Weaver Top Mount Base #46, Ruger American, Black Gloss

A rifle without a mounting rail can’t carry a scope, and this Weaver #46 base is a direct, no-gunsmithing way to fix that on a Ruger American. Order it from our Weaver lineup, part of our full selection of scope bases, from our Lubbock, Texas gun shop, and it ships fast to your door.