Abstract: A holster and shoulder-harness assembly for comfortably suspending a pistol or other instrument adjacent an arm of a wearer in a manner whereby the holster is free to swing and thereby accommodate itself to the contour of the wearer as well as to the demands imposed on the holster when the pistol is withdrawn therefrom. The harness includes a yoke which loops over a shoulder of the wearer and is strapped to the wearer's body, the dependent ends of the yoke having attached thereto the female components of a pair of directional snap fasteners. These compnents are coupled to and rotatable with respect to complementary male components secured at spaced positions on the holster whereby each fastener acts as a pivot and the holster is swingable with respect to the yoke to facilitate withdrawal of the pistol.