The Evolution Series is a passive retention holster that includes a retention adjustment screw. The tension screw is not pre-set and allows for retention pressure to be adjusted based upon personal preference. When un-holstering do so in a deliberate and rapid upward motion. Passive retention is automatically engaged upon re-holstering.This product has the following fits:CZ P-10 CCanik TP9 V2Canik TP9SACanik TP9DACanik TP9SFCanik TP9SFxGrand Power K100-MK12 9mmGrand Power P11-MK12 9mmGrand Power PK1-MK12 9mmGrand Power Q100Grand Power X-caliber 9mmH&K USP .45H&K USP Compact .45H&K USP Tactical .45 (without high vis sights)H&K VP9H&K VP9SKTaurus 24-7 OSS .45Taurus 24-7 OSS 9mm & .40Taurus G2C 9mmTaurus PT111 G2Taurus TX22Walther PPQ Classic 9mmWalther PPQ M2 9mm & .40