Trijicon Taurus 3 Dot Green Front & Orange Rear Night Sight set for models PT111, PT132, TS01O Fits Taurus models PT111, PT132, PT138, PT140, and PT145 Three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights Housed in a metal body and cushioned within silicone rubber No need for batteries Each lamp is capped with a sapphire jewel to help evenly distribute the light while protecting the lamp from solvents and puncture