XS RV0003N3Y Big Dot Front Sight for S&W J Frame/Ruger SP101

The XS Sights RV0003N3Y Big Dot front sight is designed for Smith & Wesson J Frame and Ruger SP101 revolvers. It combines a green tritium insert with a yellow outline to provide a highly visible front-sight reference in daylight and low-light conditions. The sight uses a proprietary photoluminescent Glow Dot that absorbs ambient light and glows in low light.

Key Specifications

• The compatible firearms are Smith & Wesson J Frame and Ruger SP101 revolvers.
• The sight style is a Big Dot tritium/Glow Dot front sight.
• The front color is green tritium with a yellow outline.
• The sight material is steel and tritium.
• The front sight dot width measures 0.188 inches.
• The overall sight height is 0.205 inches.
• The front sight installation requires drilling the sight pin hole.
• Distributor data states no direct shipment to California.

With its large, easy-to-see dot and low-light tritium illumination, this front sight offers a purpose-built aiming reference for compatible revolvers. The steel construction and clearly specified installation requirements make it a practical upgrade for owners seeking a dedicated Big Dot sight system.