
Availability: In Stock
The Thompson Center Cross-Slot Aluminum Base is a one-piece matte black scope mount designed specifically for TC Cross-Slot ring systems on Encore firearms. If you're running an Encore rifle or pistol and want to mount optics using Thompson Center's cross-slot rings, this base provides the foundation you need. It bolts directly into the factory-drilled holes already on your barrel, making installation straightforward without requiring gunsmithing or additional drilling.
Built from aluminum and finished in matte black, this base is engineered to handle the recoil and precision demands of hunting and target shooting. The cross-slot design works exclusively with matching TC cross-slot rings, so compatibility is simple—if your rings are TC cross-slot, this base is the right choice. Installation is straightforward: mount the base to your barrel's existing holes and tighten the screws to 25 in-lbs for a solid, repeatable connection.
Whether you're setting up a long-range hunting rig, a varmint rifle, or a scoped pistol platform, this aluminum base keeps your scope securely mounted while maintaining the clean profile Encore shooters prefer. It's a no-nonsense component that does one job well.
| Material | Aluminum |
| Finish | Matte Black |
| Mounting System | Cross-Slot |
| Recommended Torque | 25 in-lbs |
Yes. This base mounts directly to the factory-drilled holes on Encore barrels. Verify that your scope rings use the Thompson Center cross-slot system, as this base is designed specifically for that interface.
You'll need rings that are compatible with TC's cross-slot mounting system. This base will not work with Weaver, Picatinny, or other ring types.
Tighten the screws to 25 in-lbs. Do not over-torque, as this can damage the base or your barrel.

SKU: 152746991





Availability: In Stock
The Thompson Center Cross-Slot Aluminum Base is a one-piece matte black scope mount designed specifically for TC Cross-Slot ring systems on Encore firearms. If you're running an Encore rifle or pistol and want to mount optics using Thompson Center's cross-slot rings, this base provides the foundation you need. It bolts directly into the factory-drilled holes already on your barrel, making installation straightforward without requiring gunsmithing or additional drilling.
Built from aluminum and finished in matte black, this base is engineered to handle the recoil and precision demands of hunting and target shooting. The cross-slot design works exclusively with matching TC cross-slot rings, so compatibility is simple—if your rings are TC cross-slot, this base is the right choice. Installation is straightforward: mount the base to your barrel's existing holes and tighten the screws to 25 in-lbs for a solid, repeatable connection.
Whether you're setting up a long-range hunting rig, a varmint rifle, or a scoped pistol platform, this aluminum base keeps your scope securely mounted while maintaining the clean profile Encore shooters prefer. It's a no-nonsense component that does one job well.
| Material | Aluminum |
| Finish | Matte Black |
| Mounting System | Cross-Slot |
| Recommended Torque | 25 in-lbs |
Yes. This base mounts directly to the factory-drilled holes on Encore barrels. Verify that your scope rings use the Thompson Center cross-slot system, as this base is designed specifically for that interface.
You'll need rings that are compatible with TC's cross-slot mounting system. This base will not work with Weaver, Picatinny, or other ring types.
Tighten the screws to 25 in-lbs. Do not over-torque, as this can damage the base or your barrel.
SKU: 152746991
