Glock High Rear 3 Dot Front And Rear Night Sight Setbr Three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights br Each lamp is capped with a sapphire jewel to help evenly distribute the light while protecting the lamp from solvents and puncture br Contained within aluminum cylinders for additional protection Lamps are mounted on silicon rubber cushions to withstand shock and heavy recoil br Green lamps are warranted for 12 years from the date of manufacture br This item is restricted for sale to the state of California and outside the US