Trijicon S&W 3 Dot Green Front & Orange Rear Night Sight SA37O Fits Smith & Wesson M&P, SD9 VE, SD40 VE models (excluding M&P SHIELD & C.O.R.E. Series) 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