Oa Def Oa 2311 9mm 5" 17rd Hdb

The OA Defense OA 2311 9mm 5" full-size pistol is a single-action, semi-automatic metal frame platform engineered for shooters who demand optics-ready capability from the factory. Chambered in 9mm with a 5-inch barrel and 17-round magazine capacity, this pistol delivers the ballistic performance and shootability required for duty, sport, and precision training applications without requiring aftermarket modifications.

The OA 2311 ships with tritium night sights installed and three pre-cut optic mounts compatible with RMR, Delta Point Pro, and RMSC footprints, eliminating the guesswork and cost of sourcing mounting solutions separately. The 5-inch barrel maximizes muzzle velocity from the 9mm cartridge while maintaining a profile suitable for duty carry and practical shooting disciplines. Its High Desert finish provides corrosion resistance in harsh environments, while the full metal frame delivers the weight and slide-to-frame lock that shooters expect from a purpose-built platform. The package includes three magazines and a custom OA Defense range bag.

This configuration addresses the needs of law enforcement, military personnel, and competitive shooters who require a duty-ready firearm with integrated optics capability. The 17-round capacity meets the threshold for standard-capacity duty carry in unrestricted jurisdictions, while the full-size frame provides the controls and ergonomics necessary for reliable operation under stress. The inclusion of multiple optic mount adapters recognizes that operators often field different red dot platforms across their inventory, making this kit immediately adaptable to established duty setups or personal preference.

The OA Defense OA 2311 represents a departure from the modular polymer-framed platform trend, appealing to shooters who prioritize traditional metal construction and the ergonomic consistency that single-action operation provides. This pistol is built for teams and individuals who understand that optics-ready doesn't mean "requires a gunsmith"—the factory provision of three mount options reflects a mature understanding of modern duty requirements.