The OA Defense 2311 represents a carefully engineered blend of performance and versatility; designed to deliver blistering speed and accuracy while standing up to the rigors of law enforcement and duty applications. Every OA 2311 pistol ships with multiple co-witnessing slide plates, allowing for the use of most popular red dot optics without sacrificing a rear sight. The OA 2311 ships with three 17-round OA Defense magazines, but any P320 pattern magazine is directly compatible. The days of compromising are over thanks to a dedicated right-side slide stop, ambi safety, and reversible mag release.