The Weaver #411 Top-Mount Scope Base (Weaver part no. 48632) is machined specifically for Thompson/Center rifles, giving the action a solid, factory-tight platform for a riflescope. Weaver cuts the base from aluminum and finishes it in a black gloss that matches most factory blued receivers. Because it’s machined to the exact screw pattern of the receiver, there’s no drilling or gunsmithing involved — it bolts straight to the factory holes. This is the correct base to start with if you’re mounting glass on a Thompson/Center rifle for hunting or target work.

Key Specifications

• Purpose-built to fit Thompson/Center rifle receivers, matching the factory screw pattern.
• Listed as a 1-piece base, so a single component bridges the full mounting area.
• Uses Weaver’s To Receiver mount style, bolting directly to the factory tapped holes.
• Finished in black gloss to match most blued rifle receivers.
• Machined from aluminum for a lightweight, corrosion-resistant base.
• Cross-references as Weaver Application #411 on the brand’s own base numbering.
• Machined to tight tolerances for a custom, snug fit to the receiver.
• Built for maximum ring-clamping strength so mounted rings stay locked down.
• Requires Weaver-style rings to complete the mount (rings not included).

Frequently Asked Questions

Do rings come with this base? No, rings are not included; it requires separately purchased Weaver-style rings.

Will I need to drill new holes to install it? No, it’s machined to match the factory screw pattern, so it bolts directly to the existing holes.

Is this the correct base for any Thompson/Center rifle? It’s cut for Thompson/Center’s standard receiver screw pattern; check your specific model’s base pattern before ordering if you’re unsure.

Buy the Weaver #411 Top-Mount Scope Base

Get your Thompson/Center rifle ready for glass with this base from Weaver in our scope bases selection. Order it from our Lubbock, Texas gun shop for fast, direct shipping right to your door.