Browning 12389 2-Piece Base for T-Bolt Rifle, Black Matte Finish
- Type:
- Base - Two Piece
- Firearm Make Fit:
- Browning
- Mount Type:
- To Receiver
- Pieces:
- 2
- Model:
- T-Bolt Browning Style Two-Piece Scope Base
- Material:
- Steel
- Rings Included:
- No
The Browning 12389 2-piece scope base is a straightforward mounting solution for Browning T-Bolt rimfire rifles. If you're setting up a T-Bolt with an optic for small-game hunting, precision rimfire competition, or backyard target work, this base gives you the foundation you need. Browning designed it specifically for their T-Bolt platform, so the fit and alignment are dialed in from the factory—no shimming or guesswork required.
Two-piece bases offer a practical advantage: each ring mounts independently to the rifle's receiver, which means you can remove and remount your scope without losing zero as easily as you would with an integral or single-piece design. The matte black finish blends with modern rimfire setups and resists glare on the range or in the field.
This is a no-frills, do-the-job accessory. Browning engineered it for T-Bolt owners who want dependable scope mounting without paying for features they don't need. Pair it with scope rings that match your base diameter and sight height requirements, and you're ready to go.
Key Features
- Two-piece design for independent ring mounting and simplified scope removal
- Factory-fit for Browning T-Bolt rifles—no modification or fitting required
- Matte black finish for a clean, modern look and glare reduction
- Solid foundation for hunting, target, or competition optics
Frequently Asked Questions
Will this base fit my Browning T-Bolt rifle?
Yes—the Browning 12389 is engineered for Browning T-Bolt rimfire rifles. If you own a T-Bolt, this base is the right choice for your platform.
What rings do I need to use with this base?
The supplied facts do not specify the base diameter or ring compatibility. Contact Browning or a gunsmith to confirm the correct ring size and type for your scope and this base.
Can I remove my scope and remount it without losing zero?
Two-piece bases allow scope removal and remounting with less risk of zero shift than some single-piece designs, but tightness of the ring fit and care during handling are always important. Mark your rings and base before removal to aid realignment.
What finish is this base?
The Browning 12389 comes with a black matte finish, which resists glare and pairs well with modern T-Bolt setups.

