Weaver #418 Top Mount 2-Piece Base, Silver Finish - Precision Rifle Scope Mounting System

The Weaver #418 Top Mount 2-Piece Base is a solid aluminum scope mounting solution built for shooters who need dependable, repeatable optics mounting on their rifles. This two-piece design is machined to tight tolerances, so your scope rings seat consistently and your zero stays locked in—whether you're working up loads on the bench or hunting in the field. The silver finish blends with most modern rifle builds while the aluminum construction delivers the strength needed to hold your glass rock-solid through recoil and rough handling.

If you're swapping scopes between rifles, running multiple uppers, or just want to know your scope will stay put, a quality base matters more than most shooters realize. Cheap bases that don't hold tight or ring seats that shift can turn a good scope into an unreliable one. Weaver's reputation in the mounting space comes from machining precision and materials that work—and the #418 is no exception. The two-piece design gives you flexibility in ring placement and spacing, so you can dial in the eye relief and cheek weld for your particular rifle and body geometry.

This is the kind of component that works best when you don't think about it—it just holds everything where you put it, shot after shot. Whether you're a competitive shooter, a hunter, or someone building out a precision rifle, a properly engineered base under your scope is non-negotiable.

Key Features

• Two-piece design for flexible ring placement and spacing
• Machined aluminum construction for maximum strength and durability
• Tight tolerances for consistent, repeatable scope seating
• Silver finish
• Designed to securely hold scope rings under recoil

Specifications

Frequently Asked Questions

What rifles does the Weaver #418 base fit?

The #418 is a top mount base designed for rifles with Weaver-pattern top rails. Check your rifle's manual or specs to confirm Weaver compatibility before ordering.

Is this base supplied with scope rings?

This is the base only. You will need to purchase scope rings separately to mount your optic.

Can I use this base if I'm switching between different rifles?

Yes. The two-piece design allows you to remove the base from one rifle and install it on another, as long as both rifles have compatible Weaver-pattern mounting systems.