A friend of mine had a Accu-Match barrel for a Glock 17 sitting around and traded me for some ammo I had sitting around. This barrel has a compensator on it and I don't care for the added weight hanging of the end of the barrel so I looking for a thread protector for the end. My problem is that it is not a standard 1/2x28 pitch. It is bigger than 1/2 inch. Does anyone know the thread pitch? I have looked all over the web and can find no mention of the thread pitch. Thanks.