Go on any site that sells holsters from a company like Hunters, click on a holster and you will see that they have several guns that fit the same holster, go from there. A 1911 pattern will fit some large frame autos, like a p92, to a point some looser some, tighter. Same with the smaller autos shown in the picture like Gc3 or a Glock 43 the fit difference in pattern of these two is about 1/4" inch so they could use the same pattern. Retainage for these types of holsters is a strap.