- The Walther IWB holster is pressure formed and CNC cut for precision. Using a 1.75” hard clip that can adjustanywhere from -15° to +15° and be reversed for left or right handed carry. The Walther IWB holsters have an adjustable retention to ensure a perfect fit for your gun down to the thousandth of an inch for the highest level of accuracy in fit. Firearms with aftermarket external accessories such as a red dot or laser will not fit in the holster.