OA Defense 2311 Pro Full-Size 9mm | 5″ Optic-Ready

The OA Defense 2311 Pro is a full-size, optics-ready 9mm pistol built around a 2311-platform extended frame and duty-oriented enhancements. It pairs a ported, DLC-coated stainless barrel and a 7075 aluminum frame with a modular black grip and an included aluminum magwell for repeatable control during high-volume use. For optics, a compact RMR-pattern reflex sight such as a Trijicon RMR Type 2 is a suitable option under $1,000 that will complement the slide’s footprint and low-profile sights. Typical applications include duty-level training and practical/competition shooting where sustained, consistent performance is required.

Product Specifications

• The model is 2311 Pro.
• The caliber is 9mm.
• The barrel measures 5 inches.
• The frame is constructed from 7075 aluminum.
• The finish is black DLC.
• The slide is optic-ready with serrations.
• The barrel is DLC-coated stainless steel.
• The action is semi-automatic.
• The grip is a black modular grip with 7075 aluminum magwell.
• The trigger weight is 3.5–4 lbs.
• The sights include a Dawson Precision fixed rear and a fiber-optic front sight.
• The product type is single-action only.
• The pistol includes 3 magazines as accessories.
• The dimensions are 8.50″ L × 5.25″ H × 1.78″ W.
• The UPC is 850084941047.

The 2311 Pro blends robust materials and duty-minded features in a full-size package that favors controlled, repeatable shooting. Its optic-ready slide and modular grip make setup flexible for a wide range of shooters, while the DLC-coated, ported barrel and tuned internals support durability and manageable recoil during extended sessions. If you value a mechanically straightforward platform with parts and sighting options that scale from high-volume training to practical competition, the 2311 Pro is engineered to meet those needs without unnecessary complexity.