The Leupold 51223 Quick Release Base transforms scope mounting on Browning BAR rifles with tool-free optic swapping capability. This precision-machined mount eliminates the need for tools when switching between iron sights and optics, maintaining zero return shot after shot.
What Makes This Different
Unlike traditional ring mounts that require screwdrivers and risk losing zero, this quick-release system uses Leupold's proven cam-lock mechanism. The base provides repeatable return-to-zero accuracy within 1/4 MOA after multiple mount/dismount cycles. Aircraft-grade aluminum construction withstands recoil forces up to .375 H&H Magnum while maintaining consistent clamping pressure.
Key Features
- Tool-free quick-release cam levers for instant scope removal
- Guaranteed return-to-zero accuracy within 1/4 MOA
- Matte black hard-anodized finish resists corrosion and glare
- Precision-machined from 6061-T6 aluminum alloy
- Specific fitment for Browning BAR rifle receivers
- Compatible with 1-inch and 30mm Leupold QR rings
- Low-profile design maintains clean rifle lines
Field performance proves exceptional across hunting and tactical applications. The cam-lock system maintains secure optic attachment through heavy recoil, temperature extremes from -40°F to +160°F, and moisture exposure. Hunters appreciate the ability to quickly switch to iron sights for close encounters, while competitive shooters rely on the consistent zero return for equipment changes between stages.
Technical Specs
- Material: 6061-T6 aluminum alloy construction
- Finish: Matte black hard-anodized Type III
- Compatibility: Browning BAR rifle receivers
- Ring compatibility: Leupold QR rings (1-inch and 30mm)
- Weight: 3.2 ounces
- Height: Standard height configuration
- Mounting: Uses existing receiver screw holes
- Country of origin: USA
Professional gunsmiths and serious shooters choose Leupold QR bases for their proven reliability and precision engineering. This mount delivers the quick-change capability modern hunters and tactical operators demand without sacrificing the accuracy that defines Leupold optics systems.