I am looking to sell my like new 5.010" (long slide) match grade 9mm KKM 1/2"-28 supressor threaded barrel for $200 shipped or trade for a Surefire X300 Ultra or 4.25" threaded 9mm barrel. I put a 50 round box of 9mm through this earlier this year but just recently traded my long slide for a standard 4.25" slide and no longer need this barrel. The barrel cost $230 + shipping new. Below are a few pictures, if you have any questions don't hesitate to ask!