Trijicon HD Night Sight Set - S&W M&P - Green/Yellow. Trijicon Night Sights are the reliable choice for all light conditions providing superior illumination and impressive accuracy. Trijicon Bright & Tough Night Sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Equally impressive Trijicon has designed these tritium night sights to accomplish this with the same speed as instinctive shooting - and without the need for batteries. Three tritium-filled phosphor lamps provide the illumination for the Trijicon Smith & Wesson Rear Night Sight. Housed in a metal body and cushioned within silicone rubber Trijicon S&W M&P Night Sights feature a unique shock- resistant design that is patented by Trijicon. Specifications for Trijicon HD Night Sights for S&W M&P - Orange or Yellow Front: Manufacturer: Trijicon Gun Make: Smith & Wesson Gun Model: Smith & Wesson M&P M2.0 Smith & Wesson SD9 VE Smith & Wesson M&P Smith & Wesson SD40 VE Color: Black Green/Yellow Front Sight Color: Green w/Yellow Outline Rear Sight Color: black outline with tritium lamp Fabric/Material: Metal Front Material: Tritium/Paint Gun Type: Pistol Attachment Type: Professional installation recommended. Front Blade Height: 0.215 in Rear Blade Height: 0.292 in Height: 0.292 in Condition: New Features of Trijicon HD Night Sights for S&W M&P - Orange or Yellow Front: Enhanced front-sight acquisition in bright transitional and no-light situations: Glow-in-the-dark photoluminescent-painted front outline combines with a "U" notch rear and black-painted rear outlines to quickly draw your eye to the front post in all lighting conditions. One-handed slide manipulation: Steeply hooked front surface to assist in an emergency one-handed slide manipulation. Instantly visible sight picture in no-light and low-light situations: Tritium phosphor-filled glass lamp illuminates sights for high visibility in all lighting conditions. Enhanced protection from heavy recoil and harsh cleaning solvents: Tritium gas lamps are contained within protective aluminum cylinders and have additional silicone rubber cushioning. Evenly distributed light from tritium lamps: Each Trijicon tritium lamp is capped with a sapphire jewel that helps evenly distribute the light and also acts as an additional layer of protection from puncture and cleaning solvents. Package Contents: Trijicon S&W M&P Trijicon HD Night Sight Set SA137 Trijicon HD Night Sight Set - S&W M&P - Green/Yellow SA137Y