XS Sights Big Dot Revolver Front Sight - Smith & Wesson J-Frame / Ruger SP101 - Green Tritium White Outline

The XS Sights Big Dot Tritium Revolver Front Sight is a defensive-grade front-only replacement sight purpose-built for Smith & Wesson J-Frame snub revolvers and the Ruger SP101 fixed-sight revolver. The oversized 0.188" Big Dot photoluminescent aiming point wraps a green tritium vial that glows in low light, ringed by a crisp white outline to pull the eye to the front sight during fast defensive draws.

The sight body is CNC machined from high-strength steel and finished in a low-glare black to keep the profile clean on the revolver's factory blade. The wide, simple tritium front dramatically improves sight acquisition speed under stress compared to a stock ramp or blade, while the self-illuminating tritium insert stays visible for years without batteries or any ambient light source.

Designed as a direct-fit upgrade for the Smith & Wesson J-Frame revolver family and the Ruger SP101 fixed-sight model, the RV0001N3 ships as the front sight only (no rear included) and installs in place of the factory front blade. It's a proven carry revolver upgrade from one of the most trusted names in defensive tritium sights.