Ruger 90228 Scope Base Adapter - Mark II/III/IV Weaver Mount

The Ruger 90228 Scope Base Adapter transforms Mark series pistols into precision optics platforms, eliminating the guesswork of aftermarket mounting solutions. This factory-engineered adapter provides a rock-solid foundation for scopes and red dot sights on Mark II, Mark III, and Mark IV pistols. Machined from aircraft-grade aluminum with a durable black anodized finish, it maintains the sleek profile while adding tactical versatility.

What Makes This Different

Unlike generic scope mounts that require gunsmithing or permanent modifications, this adapter integrates seamlessly with the existing receiver design. The precision-machined Weaver rail system ensures consistent zero retention through thousands of rounds. Factory specifications guarantee proper fit and function without voiding warranties, while the low-profile design maintains the pistol's balance and handling characteristics.

Key Features

• Factory-engineered fit for Mark II, Mark III, and Mark IV pistols
• Aircraft-grade aluminum construction with black anodized finish
• Standard Weaver rail pattern accepts most optics and mounting systems
• Low-profile design maintains original sight picture and handling
• No permanent modifications or gunsmithing required
• Corrosion-resistant finish withstands harsh conditions
• Precision-machined surfaces ensure consistent optic alignment

Competition shooters rely on this adapter for consistent scope mounting in Steel Challenge and Bullseye competitions. The solid aluminum construction absorbs recoil stress without shifting, maintaining zero through extended shooting sessions. Small game hunters appreciate the ability to mount variable power scopes for precise shot placement at varying distances. The anodized finish resists scratches and corrosion from field use and storage.

Technical Specs

• Material: Aircraft-grade aluminum alloy
• Finish: Black anodized Type III hardcoat
• Compatibility: Ruger Mark II, Mark III, Mark IV pistols
• Rail Pattern: Standard Weaver/Picatinny compatible
• Installation: Drop-in replacement, no modifications required
• Weight: Approximately 0.8 ounces
• Manufacturer: Ruger (Model 90228)
• UPC: 736676902286

This genuine Ruger accessory eliminates compatibility concerns while providing a professional optics mounting solution. The factory engineering ensures proper fit and long-term reliability that aftermarket alternatives often lack.