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Browning A-Bolt / A-Bolt II Two-Piece Weaver-Style Scope Bases — Matte Black (12552) — Informational Overview
The Browning A-Bolt/A-Bolt II Two-Piece Weaver-Style Bases are a scope mounting base set intended for Browning A-Bolt and A-Bolt II rifle receivers (as indicated by the product name). This model is identified by part number 12552 and UPC 023614409076. The set uses a two-piece base configuration and a Weaver-style cross-slot interface, and it is finished in matte black for a subdued, low-glare appearance.
Two-piece bases are commonly selected for traditional hunting rifle setups where users want separate front and rear bases that preserve receiver access while still supporting common ring placement options.
Key Identifiers
Brand: Browning
Intended Platform (as listed): Browning A-Bolt / A-Bolt II
Base Type: Two-piece scope base set
Mount Standard: Weaver-style (cross-slot)
Finish/Color: Matte black
Part Number / MPN: 12552
UPC: 023614409076
Weaver-Style Interface: Practical Mount Standard
A Weaver-style base uses cross-slots designed to accept compatible rings or mounts. In practical terms, Weaver-style bases are commonly used because they:
Provide a stable clamping interface for ring placement
Allow flexibility in fore-aft ring positioning for eye relief adjustments
Support a broad range of Weaver-compatible rings and mounts (compatibility should be verified)
Note: While many Picatinny-style rings may fit Weaver bases, interchangeability is not guaranteed both ways due to slot dimension differences. Users typically confirm ring compatibility with Weaver-style bases specifically.
Two-Piece Base Configuration: Access and Setup Considerations
A two-piece base configuration (front + rear) is often chosen for:
Reduced weight compared with some one-piece rails
Improved access to the receiver area on certain rifle designs
A classic look consistent with many bolt-action hunting rifles
Because ring spacing is distributed across two bases, users typically ensure their scope tube length and ring selection allow proper eye relief and comfortable mounting position.
Matte Black Finish: Low-Glare and Practical Matching
The matte black finish is commonly preferred when users want:
Reduced glare in bright conditions
A finish that matches many modern optics and rings
A more subdued appearance than gloss finishes
Less visible fingerprints and minor cosmetic marks compared with glossy coatings
A-Bolt / A-Bolt II Fitment: What to Verify
Even when a base is labeled for a specific rifle family, users typically confirm:
The rifle is an A-Bolt or A-Bolt II (not another Browning action type)
Receiver screw hole pattern matches the base set
Correct screw length and thread pitch for the receiver
Ring height selection provides adequate clearance for the scope objective and bolt handle operation
Matching by MPN 12552 is generally the most reliable method for selecting the correct base set.
Installation and Safety Notes (General)
Scope bases are accuracy- and safety-relevant components. Common best practices include:
Following Browning instructions and torque specifications
Ensuring mounting surfaces are clean and properly prepared
Using thread locking compound only if recommended by the manufacturer
Verifying fastener security periodically
If unsure about installation, many users consult a qualified gunsmith or armorer.
Quick Reference Summary
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