XS Sight Big Dot Tritium Shotgun Front Sight White Univeral Fit Fits Mossberg, Remington, and other beads mounted to barrels;Improves acquisition speed and enhances low-light performance;White light reflect ambient light in low light or shadows;Center tritium glows green in low to no light situations;Glues over front beads .120"-.140" in diameter;Available in Remington, Univesal;Available in colors: Orange, White, Yellowtable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 7600 Product Group Code: 7600J Product Sub Group 1: 7600J2 Inactive: No Prop65 Applies: Yes Prop65 Cancer Harm: Yes Prop65 Chemical: Lead