The Weaver #418 Top Mount 2 Piece Base is a straightforward, dependable scope mounting solution built on aluminum construction for shooters who want a solid foundation without unnecessary complexity. If you're mounting glass on a rifle, shotgun, or long-range handgun, a quality base pair forms the backbone of a repeatable, accurate setup—and this two-piece system gives you exactly what you need: precision fit and durable performance. These bases are designed to accept standard Weaver-pattern rings and are finished in matte to reduce glare and complement any rifle aesthetic.

Two-piece bases let you dial in the exact height and geometry your rifle and optic demand. You'll order front and rear pieces separately, so you can match them to your specific firearm model and ring height. Whether you're setting up a hunting rifle, a tactical platform, or a vintage shotgun, Weaver's lineup spans a wide range of modern and older action types—which is why finding the right base number for your gun is the first step. The aluminum construction keeps weight down while maintaining the rigidity necessary for repeatable zero.

The matte finish is a practical choice: it won't catch light during low-light hunting situations or at the range, and it blends in visually with most rifle finishes. Installation is straightforward for anyone comfortable with basic gunsmithing or comfortable enough to let a gunsmith handle it. Once mounted and torqued, these bases deliver the kind of rock-solid mounting platform that lets you trust your scope to stay put, shot after shot.

Key Features

• Two-piece design allows front and rear base selection matched to your firearm
• Aluminum construction—lightweight yet rigid
• Matte finish reduces glare and unwanted reflection
• Compatible with standard Weaver-pattern scope rings
• Fits a broad range of rifle, shotgun, and long-range handgun platforms

Specifications

Brand	Weaver
Model	#418
Mount Type	Top Mount, 2 Piece
Material	Aluminum
Finish	Matte
Ring Pattern	Weaver

Frequently Asked Questions

Will the Weaver #418 fit my rifle?

The #418 is designed for a broad range of modern and older rifles, as well as shotguns and long-range handguns. Because Weaver offers bases #11 through #62, each numbered for specific action types and geometries, you'll need to confirm the correct base number for your exact firearm model. Check with Weaver's rifle-to-base cross-reference or contact us to verify the right fit.

Do I need to order both front and rear bases separately?

Yes. The #418 is sold as individual front and rear pieces. You'll order both a front base and a rear base to complete your mounting system. Some Weaver models do offer pre-paired sets, but the #418 is ordered as separate components.

What scope rings do these bases accept?

Weaver #418 bases are designed to work with standard Weaver-pattern scope rings. Make sure your rings are sized and specified for Weaver mounts before purchase.

Is any gunsmith expertise required to install these bases?

Base installation involves drilling, tapping, and torquing—steps best handled by someone with experience in firearms work. If you're not comfortable with the process, a competent gunsmith can mount and align the bases for you.