The Browning Picatinny rail (model 12522) is a one-piece scope base engineered for X-Bolt long action rifles. Machined from aircraft-grade aluminum and finished in matte black, the base provides a solid mounting platform and an integrated 20 MOA cant to extend elevation adjustment range. It attaches to the receiver using eight screws and accepts Picatinny (Mil Std 1913) rings while remaining generally compatible with Weaver-style rings.
Key Specifications
- The material is machined from aircraft-grade aluminum alloy for strength and light weight.
- The finish is matte blued / matte black for a low-reflective appearance.
- The mount provides an integrated 20 MOA of elevation to extend scope adjustment range.
- The design fits X-Bolt long action rifles only.
- The base secures to the receiver with 8 screws for a stable lock-up.
- The unit is a one-piece mount for consistent alignment and repeatability.
- The rail accepts Picatinny (Mil Std 1913) rings and is generally compatible with Weaver-style rings.
- The package does not include rings; rings are not included.
- The listed weight is 1.6 oz.
This one-piece Picatinny base is intended for shooters who want a dependable, low-profile mounting solution that increases available elevation without adding unnecessary bulk. Its aircraft-grade construction and secure multi-screw attachment give a solid interface between optic and action while preserving the inherent accuracy potential of the X-Bolt long action platform.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




