This used Atlas Gunworks Artemis Perfect Zero, chambered in 9mm, is equipped with a 4.6" bull threaded barrel. It is also equipped with a right-handed magazine release, ambidextrous righty bias thumb safety, tactical magwell attachment, a Trijicon RMR HD 1.0 MOA optic, and a front iron sight. The optic is equipped with an OpticGard optic cover with a carbon-fiber style, and this Artemis features Atlas Gunworks' standard grip panels- it also features the manufacturer's sub-2 pound trigger weight and flat medium trigger shoe. This particular Artemis Perfect Zero comes with two 20-round magazines and the Atlas Gunworks bag. --Features & Specifications-- Caliber: 9x19 (9mm Luger) Atlas Gunworks Artemis Perfect Zero 4.6" Bull Threaded Barrel Finish: Black Detachable Magazine System --Your Purchase Includes-- Atlas Gunworks Artemis Perfect Zero Two (2) 20-Round Magazines Atlas Gunworks Pistol Bag Sold EXACTLY as shown in photos