The Fobus SW4 standard paddle holster fits Smith & Wesson 686, K&L frame revolvers, Model 10, Model 17 Masterpiece, Model 48, Model 586, Model 617, Model 65, Model 686 Deluxe, Model 686 Plus, Model 686 Plus 3-5-7 Magnum / Taurus 431, 65, 66. This holster has passive retention allowing rapid presentation. It also has rubberized paddle backing for extra stability and comfort. Silicon spray may be used in the trigger guard are of the holster as a means of lowering the level of retention. It is maintenance free.