Night Fision Perfect Dot Night Sight Set w/Front Square Rear Yellow Front w/Green Tritium Black Rear w/Green T Fits Smith & Wesson M&P/M&P M2.0/SD9. Brightest Tritium Night Sights on the market. CNC Machined out of high quality 4140 steel. Black Nitride coating used to improve wear and corrosion resistance. Installation: Contact Professional Gunsmith Maximum nighttime visibility through the use of tritium self-powered illumination. Brighter than leading competitors through use of 30percent more tritium. Scientifically engineered colorants in the Perfect Dot provide optimal visibility in daylight. Unparalleled durability. Innovative Perfect Dot provides a consistent brilliant outline that won't flake chip or wear over time. Package Contents: Night Fision Perfect Dot Night Sight Set w/Front Square Rear Pistol Sights Night Fision SAW-201-003-YGZG: Perfect Dot Night Sight Set w/Front Square Rear Yellow Front w/Green Tritium Black Rear w/Green T Fits Smith & Wesson M&P/M&P M2.0/SD9 VE/SD40 VE Mo