Brand new in box, never used. I have 4 of them left but have other projects that take priority first. DLC coated diamond fluted match grade barrel. Ported at end of barrel and compensator for smooth fitting. Only requires 1 screw to take off. Not a threaded barrel, so legal in all states of the beautiful USofA.Has been confirmed by manufacturer and other experts will reduce muzzle rise by 40% straight out the box. Perfect for many applications and no competition comes close on the market except for the new Canik TTI combat master that was just released. Make it a custom build for a lot less!