$20.66
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Availability: In Stock
The Weaver #401 Top Mount 1-Piece Base is a solid aluminum scope mount built for hunters and shooters who want a proven, no-fuss mounting solution. Unlike split two-piece designs, this single-piece base keeps things simple: one solid platform that attaches to the top of your receiver with no gunsmithing or modification required. If you're running a Weaver-compatible scope (or any optic that accepts standard Weaver rings), this base gives you a stable, secure foundation at a fraction of the cost of premium alternatives.
The silver finish is durable and understated—it won't catch light in the field, and it matches the tone of most traditional rifle builds. The engineering is straightforward: precision-drilled, square shoulders and a snug-fitting design mean once you torque it down, it stays put. No rocking, no creep. That reliability matters whether you're dialing in at the bench or trusting your zero in the field after a hard hunt.
Weaver makes their bases in several configurations—top and side mounts, one and two-piece setups—so you can tailor the solution to your receiver. The #401 is the classic top-mount choice for most center-fire rifles. It's the kind of unassuming component that does exactly what it should, every time, which is why serious shooters keep reaching for Weaver.
| Mount Style | Top Mount |
| Configuration | 1-Piece |
| Material | Aluminum |
| Finish | Silver Anodized |
| Ring Standard | Weaver |
The #401 is a top-mount base designed for rifles with standard receiver dovetails compatible with Weaver #401 specifications. Confirm fitment with your specific rifle model before purchase. Weaver offers other models for different receiver styles, so if you're unsure which base you need, reach out to us with your gun's details.
The #401 is designed for rings drilled and tapped to Weaver standards. Most mainstream ring manufacturers—Weaver, Leupold, Burris, UTG, and others—use Weaver-compatible spacing, so you'll have plenty of ring options. If your rings follow Weaver specs, you're good to go.
No. The #401 attaches directly to your rifle's receiver using existing dovetail slots or mounting holes. Installation is straightforward—no drilling, tapping, or permanent modification needed. You just need the appropriate screws (which come with the base) and a screwdriver or small wrench.
The #401 is a one-piece base, meaning the entire platform is a single solid unit. This design offers maximum stability compared to two-piece alternatives and is ideal for hunters and shooters who want simplicity and a unified mounting surface.
SKU: 114463840 • Width: 1.5in • Height: 1in • Depth: 5in • Weight: 0.13oz
Availability: In Stock
The Weaver #401 Top Mount 1-Piece Base is a solid aluminum scope mount built for hunters and shooters who want a proven, no-fuss mounting solution. Unlike split two-piece designs, this single-piece base keeps things simple: one solid platform that attaches to the top of your receiver with no gunsmithing or modification required. If you're running a Weaver-compatible scope (or any optic that accepts standard Weaver rings), this base gives you a stable, secure foundation at a fraction of the cost of premium alternatives.
The silver finish is durable and understated—it won't catch light in the field, and it matches the tone of most traditional rifle builds. The engineering is straightforward: precision-drilled, square shoulders and a snug-fitting design mean once you torque it down, it stays put. No rocking, no creep. That reliability matters whether you're dialing in at the bench or trusting your zero in the field after a hard hunt.
Weaver makes their bases in several configurations—top and side mounts, one and two-piece setups—so you can tailor the solution to your receiver. The #401 is the classic top-mount choice for most center-fire rifles. It's the kind of unassuming component that does exactly what it should, every time, which is why serious shooters keep reaching for Weaver.
| Mount Style | Top Mount |
| Configuration | 1-Piece |
| Material | Aluminum |
| Finish | Silver Anodized |
| Ring Standard | Weaver |
The #401 is a top-mount base designed for rifles with standard receiver dovetails compatible with Weaver #401 specifications. Confirm fitment with your specific rifle model before purchase. Weaver offers other models for different receiver styles, so if you're unsure which base you need, reach out to us with your gun's details.
The #401 is designed for rings drilled and tapped to Weaver standards. Most mainstream ring manufacturers—Weaver, Leupold, Burris, UTG, and others—use Weaver-compatible spacing, so you'll have plenty of ring options. If your rings follow Weaver specs, you're good to go.
No. The #401 attaches directly to your rifle's receiver using existing dovetail slots or mounting holes. Installation is straightforward—no drilling, tapping, or permanent modification needed. You just need the appropriate screws (which come with the base) and a screwdriver or small wrench.
The #401 is a one-piece base, meaning the entire platform is a single solid unit. This design offers maximum stability compared to two-piece alternatives and is ideal for hunters and shooters who want simplicity and a unified mounting surface.
SKU: 114463840 • Width: 1.5in • Height: 1in • Depth: 5in • Weight: 0.13oz