OA Defense 2311 Full Size Pro (Ported) 9mm, 5 inch, Two-Tone, SAO 2011-Style, Optics-Ready, Night Fision Rear Sight, Nine 21-Round Magazines
This OA Defense 2311 Full Size Pro (Ported) stands out with a 5 inch linkless barrel, a tan/green-gray two-tone finish, and a feature-rich 2011-style SAO platform. It is optics-ready with a factory cut and includes multiple mounting plates, ships with nine 21-round steel magazines, and wears a fiber-optic front paired with a Night Fision rear sight. Made in the USA and configured with ambidextrous controls, it offers modern ergonomics and proven capacity.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Specific Condition Notes: Mild evidence of prior use is present, and the pistol appears very well cared for overall.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
What's Included
- OA Defense soft pistol case
- 9x 21-round magazines (steel double-stack SIG P320-pattern; mix of baseplates including extended basepads on some)
- Multiple red-dot optic mounting plates with screws and hardware (as shown)
- Paperwork
The Full Size Pro (Ported) configuration features a slide with a top window and forward lightening/port cuts, plus front and rear cocking serrations. The slide is optic cut and does not have a cover plate installed, enabling direct mounting with the included plates. The tan slide over a green-gray frame delivers a clean, two-tone presentation.
The 5 inch, linkless barrel, single-action-only, hammer-fired, recoil-operated system, and 2011-style double-stack platform are purpose-built for consistent performance. Capacity is 21+1 with the included 21-round steel magazines, which are SIG P320-pattern for broad magazine compatibility.
Controls and ergonomics are comprehensive: ambidextrous thumb safety, ambidextrous slide-lock levers, and a reversible magazine release. The textured grip module with OA logo, bilateral thumb ledges/index pads, flared magazine well, and skeletonized hammer support confident handling.
The full-length dustcover integrates a MIL-STD-1913 Picatinny rail with three slots for accessory mounting. Additional engineering touches include patent-pending debris-clearance channels. Iron sights consist of a fiber-optic front blade and a dovetailed Night Fision square-notch rear.