Micro Red Dot Sight Mount Base for Smith & Wesson M&P SD40VE Mount Plate, F1Micro Red Dot Sight Mount Base for Smith & Wesson M&P SD40VE Mount Plate, F1 ITEM DESCRIPTION Micro Red Dot Sight Mount Base for Smith & Wesson M&P SD40VE Mount Plate, F1 This base is designed for Smith& Wesson M&P pistols to fit following micro red dots: Ade Advanced Optics rd3 001, rd3 02, rd3 009 Sightmark mini shot reflex sight Vortex Razor Viper Venom micro red dot Burris Fastfire micro red dot(some burris red dot might require longer screws