The 1911-B is and upgraded 1911 in .45 ACP with various features. It features a hammer forged stainless steel barrel Novak style dot sights a flared ejection port and a black cerakote finish. It also features and extended beavertail style grip safety enhanced trigger extended ambidextrous thumb safety and beveled magazine well. As with the rest of the company's Duty B45 series, the Manta runs a forged carbon steel slide and frame. Includes (1) eight round magazine cleaning brush and owner's manual. Guns.com Full Review of the Manta Ray Bobtail