OA-2311-FPRO-KIT-BLK-PRT-21 | OA Defense 2311 Pro 9mm

The OA 2311 Pro is a full-size, optics-ready 9mm pistol built for high-round-count use and dependable performance. It features a ported 5-inch barrel, a cut and contoured slide, and a 7075 aluminum frame paired with a black polymer grip module. The kit ships with multiple magazines, interchangeable slide plates for common optic footprints, and tritium night sights. For a practical optic under $1,000 that pairs well with this platform, consider a compact red-dot from Holosun’s lineup.

Product Specifications

• The model is 2311 Pro.
• The manufacturer is OA Defense.
• The barrel measures 5 inches and is ported to reduce muzzle rise.
• The frame is constructed from 7075 aluminum.
• The grip module is black polymer.
• The unloaded weight is 28 ounces.
• The trigger features a Pro treatment with a weight of 3.5–4.0 pounds.
• The action is semi-automatic.
• The pistol is optic-ready and includes slide plates for multiple footprints.
• Sights installed are Night Fision tritium night sights with alternate heights provided for optic use.
• The kit includes three 21-round and two 17-round magazines.
• The kit includes four slide plates, including plates for RMR, DPP and Holosun K/RMSc footprints.
• Included accessories include a custom OA Defense range bag, a cable safety lock, and owner’s manual and safety literature.
• The finish and external color are black.
• UPC: 850055310698.

Purpose-built for duty-style use and extended range sessions, the 2311 Pro combines a robust 7075 aluminum chassis with a ported, performance-oriented barrel and a cut slide for faster cycling. The kit format supplies multiple magazines and mounting plates so the pistol can be set up for precision sighting or rapid acquisition with a red dot. Its combination of parts and accessories makes it a practical option for shooters who value modularity, sighting versatility, and sustained reliability.

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