Burris 410990 Ruger to Weaver Base Adapter - Matte Black Finish

The Burris 410990 Ruger-to-Weaver Base Adapter transforms Ruger integral scope mounts into standard Weaver-style bases, expanding optic mounting options significantly. This precision-machined adapter eliminates the limitations of factory Ruger bases while maintaining zero retention and structural integrity.

What Makes This Different

Unlike universal adapters that require modifications, the Burris 410990 bolts directly onto existing Ruger integral bases without gunsmithing. The adapter maintains the original mounting height while converting the proprietary Ruger system to industry-standard Weaver dimensions. Constructed from aircraft-grade aluminum with stress-relieved machining, it handles recoil forces up to .375 H&H Magnum without shifting.

Key Features

• Direct bolt-on installation to Ruger integral scope bases without modifications
• Converts proprietary Ruger mounts to standard Weaver/Picatinny compatibility
• Aircraft-grade 6061-T6 aluminum construction with matte black anodized finish
• Maintains original scope mounting height and eye relief positioning
• Cross-slot spacing matches standard Weaver dimensions at 0.206 inches
• Includes stainless steel mounting hardware with thread-locking compound
• Compatible with Ruger 10/22, Mini-14, Mini-30, and M77 series rifles

Field testing demonstrates consistent zero retention through temperature cycling and sustained firing sessions. The adapter withstands magnum recoil forces while providing rock-solid mounting for variable power scopes, red dots, and tactical optics. Hunters appreciate the ability to mount modern optics on classic Ruger rifles, while competitive shooters benefit from access to precision scope rings and mounting systems.

Technical Specs

• Material: 6061-T6 aluminum alloy with Type III hard anodizing
• Finish: Non-reflective matte black anodized coating
• Cross-slot spacing: 0.206 inches (standard Weaver specification)
• Mounting hardware: Stainless steel screws with thread-locking compound
• Weight: 2.1 ounces
• Compatibility: Ruger integral scope base systems
• Recoil rating: Suitable for calibers up to .375 H&H Magnum
• Country of origin: United States

The Burris 410990 represents the most straightforward solution for Ruger owners seeking modern optic compatibility. Professional gunsmiths recommend this adapter for its precision fit and long-term reliability under field conditions.