OA Defense 2311 Full Size 9mm 5″ | 17rd | OA2311FLSZKITHDSSTD17

The OA Defense 2311 is a full-size, optics-ready 9mm pistol that pairs a 5.00″ barrel with a high-quality slide and a sage polymer grip for a balanced duty and competition profile. It is offered in a Cerakote Elite E-190 High Desert finish and ships with multiple optic mounting plates to accept popular footprints. For an optic under $1,000 that suits the factory Holosun K/RMSc and RMR footprints, consider the Holosun 507K for a low-profile red-dot option that matches the pistol’s sights and intended uses. Suitable applications include law-enforcement/duty use and competition shooting where speed and reliable sight acquisition are priorities.

Product Specifications

• The manufacturer is OA Defense.
• The model is 2311.
• The caliber is 9x19mm (9mm).
• The barrel length is 5.00 inches.
• The capacity is 17+1 rounds.
• The frame is constructed from 7075 aluminum.
• The slide is made from 17-4 stainless steel.
• The finish is Cerakote Elite E-190 High Desert.
• The grip material is polymer (sage).
• The firearm is a semi-automatic, single-action-only design.
• The sights are Night Fision tritium night sights with multiple heights for optic co-witnessing.
• The safety configuration is ambidextrous.
• The trigger pull measures approximately 4.0–4.5 lb.
• The unloaded weight is 29 oz.
• Included accessories and UPC are three 17-round OA magazines; four slide plates (RMR DPP & Holosun K/RMSc optic mounts and an iron sight cover plate); Night Fision tritium night sights; cable safety lock; custom OA Defense range bag; UPC 850055310193.

The 2311 full-size blends practical ergonomics with parts and features intended for serious range work and service-level reliability. Optic-ready flexibility and a comprehensive kit of mounting plates and magazines let shooters tailor the pistol to match personal sighting systems and competition or duty requirements. Its materials and finish choices support repeated use while keeping controls accessible for both hands.

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