The OA Defense 2311 Pro Full Size is a semi-auto handgun chambered in 9mm Luger. It features a 5-inch barrel and a capacity of 21 rounds. The black DLC finish enhances durability, while the optic-ready serrated slide allows for easy mounting of optics. The aluminum frame includes a Picatinny rail for accessory attachment, and the black modular grip ensures a secure hold.Key FeaturesAction: Semi-Auto action for quick follow-up shots.Sights: Equipped with a fiber optic front sight for improved visibility.Safety: Features an ambidextrous safety for convenient operation.