This product has the following fits: - Sig Sauer P229 9mm (without rail) - Smith & Wesson M&P Shield .45 - Steyr Model M .357 Model M .40 (no A1 models) Model M 9mm Model S - The Standard Series is a passive retention holster. When un-holstering do so in a deliberate and rapid upward motion. Silicone spray may be used in the trigger guard area of the holster as a means of lowering the level of retention. Passive retention is automatically engaged upon re-holstering.