BLACKHAWK SERPA Sportster, Fits Glock 20/21/37, S&W M&P45, S&W M&P9/40 Pro, Right Hand, Gray Finish, Includes Paddle Platform Only 413513BK-R Designed for civilian concealed carry or range use" the SERPA Sportster Holster is constructed of injection molded polymer for long-lasting durability. It features the same dependable SERPA technology but is specifically tailored for civilian operation. Features passive retention detent adjustment screw and speed cut design for rapid draw" target acquisition and re-holstering.