Warne M987M 1-Piece Steel Base For Thompson Center Weaver Style Black

The Warne M987M is a single-piece steel scope base designed for Thompson Center Encore and Omega rifles, built on the proven Weaver-style mounting system. If you're setting up a TC handgun or rifle with an optic, this base gives you a low-profile platform that won't bulk up your firearm or force you into an awkward shooting position. The Weaver design is one of the most robust and widely compatible mounting standards in the industry—it's been the backbone of precision shooting for decades, and for good reason.

What makes the M987M practical for field use is its compact footprint. Even with a scope mounted, you can still use your rifle's iron sights by looking over the top of the base—a real advantage if your optic fails or you need a quick backup aim point. The base features full-width recoil slots that work in concert with Warne Maxima QD rings, distributing recoil loads evenly across the mounting surface and locking your scope down hard without marring the tube.

Installation is straightforward: the base uses Torx-style T-15 socket cap screws, and Warne recommends 25 inch-pounds of torque for proper security. No guesswork, no over-tightening. If you're bedding a quality optic on a TC platform and want a solid, time-tested foundation that won't shift, the M987M delivers the kind of dependable steel construction that's earned Warne its reputation among hunters and precision shooters.

Key Features

• Single-piece steel construction for rigid optic mounting
• Weaver-style design—industry-standard compatibility and strength
• Low-profile footprint allows co-witness with iron sights
• Full-width recoil slots for maximum bearing surface with compatible rings
• Torx-style T-15 socket cap screw attachment

Specifications

Frequently Asked Questions

Will this base work with Thompson Center rifles and handguns?

Yes—the M987M is engineered for Thompson Center Encore, Omega, and Triumph platforms. Check your specific TC model to confirm fit before ordering.

Can I keep my iron sights on the rifle when this base is mounted?

Yes. The low-profile design allows you to look over the top of the base and use your iron sights as a backup—one of the practical advantages of this base design.

What rings work with the M987M base?

The base is built on Weaver-style mounting, which is compatible with any standard Weaver-spec rings. Warne Maxima QD rings pair particularly well with this base, as their recoil keys engage fully with the base's recoil slots.

How do I install this base?

The base attaches using Torx-style T-15 socket cap screws. Tighten to 25 inch-pounds of torque for proper security. Use a Torx wrench to avoid stripping the fasteners.