The Weaver #13 Top-Mount Scope Base (Weaver part no. 48013) is machined for the Savage 4, Savage 5, Stevens 56, and Stevens 66, giving these bolt-action .22 rifles a solid platform for a riflescope. Weaver machines every base to tight tolerances for a custom fit, and builds this one from aluminum for a light, corrosion-resistant mount. It uses Weaver’s rock-solid cross-lock design, so once rings are torqued down they hold tight under recoil. This is the correct base to start with if you’re mounting glass on a Savage 4/5 or Stevens 56/66 for small-game hunting or plinking.

Key Specifications

• Purpose-built to fit the Savage Model 4 and Model 5, matching the receiver’s factory-drilled screw pattern.
• Also fits the Stevens Model 56 and Model 66, sharing the same drilled hole pattern.
• Listed as a 1-piece base, so a single component spans the full mounting area.
• Built for bolt-action rimfire receivers on this fit list.
• Uses Weaver’s To Receiver mount style, bolting directly to the factory tapped holes.
• Built on Weaver’s cross-lock rail design for rings that hold tight under recoil.
• Machined from aluminum for a lightweight, corrosion-resistant base.
• Cross-references as Weaver Application #13 on the brand’s official fit chart.
• Ships at a featherlight 0.025 lb, adding almost nothing to your order.

Frequently Asked Questions

What rifles does this base fit? It’s machined for the Savage 4, Savage 5, Stevens 56, and Stevens 66, listed under Weaver’s Application #13.

Are scope rings included? No, this is the base only; pair it with a set of Weaver-style rings to finish the mount.

Does this base need gunsmithing to install? No, it’s machined to bolt straight to the factory holes on these receivers.

Buy the Weaver #13 Top-Mount Scope Base for Savage 4/5 and Stevens 56/66

A rimfire that holds zero starts with a base machined to the receiver’s exact geometry, and this Weaver #13 bolts straight to a Savage 4/5 or Stevens 56/66 with no modification. Order it from our Lubbock, Texas gun shop and it ships fast to your door, along with more scope bases and mounting hardware.