OA Defense 2311 Pro 9mm – Full Size Ported Pistol

The OA Defense 2311 Pro is a full-size, optics-ready 9mm service pistol engineered for duty use, extended range sessions, and precision shooting scenarios. It is built to deliver controllable recoil and consistent performance where durability and repeatable function are required.

The pistol pairs a ported 5-inch barrel with a contoured, lightened slide and an aluminum frame to reduce muzzle rise and support faster follow-up shots. Ergonomic features include a modular grip module, an extended magazine release paddle, fully ambidextrous controls, and factory-installed night sights with additional sight heights supplied for optic use.

Key Specifications

• The caliber is 9mm.
• The barrel length is 5 inches.
• The barrel type is Ported.
• The action is Semi-Auto.
• The frame material is 7075 Aluminum.
• The trigger weight is 3.5–4.0 lb.
• The unloaded weight is 28 oz.
• The sights are Night Sights.
• The kit includes three 21-round and two 17-round magazines (five magazines total).
• The model is 2311 Pro.

This pistol ships as a kit that includes multiple slide plates for RMR, DPP, and RMSc footprints, night sights with alternate heights, a cable safety lock, owner’s manual, and a custom range bag, making it ready for optics setup and range use.

Buy the OA Defense 2311 Pro 9mm online today for a full-size, optics-ready platform that supports duty and range performance while offering modular features for customization.