It's pretty common to find surplus ones that have been altered commercially on the lines illustrated, with gussets and snout extensions and carrying straps made out of Sten gun slings (like the one above) or '44 webbing. For many years this was the only cheap one you could get and Parker-Hale offered altered ones as a catalogue item. One I have here fits a P-14 very well. A gusset was pretty much a necessity if you had a PH5 sight of some sort on board - you couldn't force it in otherwise.