I want a Threaded Barrel for my Glock 21. I dont have a Suppresor and dont plan on getting one, I just think they look cool (just like on a USP Tactical, one of my favorite handguns). All of them I have seen are bare stainless and I wawnt a black one. Where can I get one? With the extra little bit of length, is it gunna help at all? Anybody have one for sale? What thread should I get? Ill even buy a Thread protector for one if someone has one. IM GETTING A THREADED BARREL!!!