With a heavy-duty metal clip that accommodates up to a 1.5" belt, this premium leather magazine holster can accommodate most single or double stack handgun magazines. Using a standard Phillips screwdriver you can adjust the retention level down from the thin single stack of a .22, up to a full-size double stack of a 9mm, .40 or .45 caliber. We make them from premium leather in black. Below is a list of calibers and their compatibility.