The Weaver #413 Gloss Top Mount 1-Piece Base is a straightforward, no-frills scope mounting solution for hunters and shooters who want a single integrated base rather than separate front and rear pieces. Built from lightweight aluminum and finished in a gloss coat, this one-piece design simplifies setup on rifles, shotguns, and long-range handguns — no juggling multiple components or worrying about base-to-base alignment. It's the kind of mount that gets out of your way so you can focus on glass and trigger time.

One-piece bases appeal to shooters who value simplicity and weight savings, particularly useful on mountain hunts or when every ounce counts. The gloss finish resists glare and provides a professional look on the gun. Because this is a universal top-mount design (not gun-specific), verify compatibility with your particular rifle model before ordering — Weaver publishes a full lineup of models (#11 through #62) covering most modern and vintage platforms.

Installation is straightforward on any rifle drilled and tapped for Weaver mounts. Pair it with a quality scope that matches your shooting discipline, whether you're zeroing at 100 yards or stretching shots to longer range. If your rifle requires both front and rear bases, check whether Weaver offers a base pair set for your model — some guns are catalogued with matched pairs rather than individual pieces.

Key Features

• One-piece integrated design eliminates base alignment variables
• Lightweight aluminum construction
• Gloss finish resists glare
• Compatible with rifles, shotguns, and long-range handguns drilled for Weaver mounts

Frequently Asked Questions

Will this fit my rifle?

The #413 is a Weaver top-mount base designed for firearms drilled and tapped to Weaver specifications. Compatibility varies by gun model; Weaver publishes a full lineup of base models covering most rifles, shotguns, and handguns. Verify your rifle is listed for the #413 before ordering.

Do I need to order a front and rear base separately?

This is a one-piece base, which means it serves both the front and rear mounting surfaces in a single unit. Some rifle models are offered as base pair sets instead; check Weaver's compatibility guide to confirm which option applies to your gun.

What's the advantage of a one-piece base over separate front and rear bases?

A one-piece design reduces components and eliminates the potential for misalignment between front and rear pieces. It also saves weight compared to two separate bases, making it popular for mountain hunting and other applications where ounces matter.