OA Defense 2311 Compact Pro 9mm — 4.25 in SAO, Night Fision H3 Sights, Optics-Ready, Tan/Sage Two-Tone, 5x 15rd Mags
The OA Defense 2311 Compact Pro is a recent-release, USA-made, 9mm double-stack 1911 built around a 4.25 in barrel and a serialized aluminum frame with a polymer wrap-around grip module and integral flared magwell. This example stands out with Night Fision H3 tritium sights, a modular optics-ready slide, fully ambidextrous controls, and five 15-round magazines, all in a distinctive tan slide and sage-green grip module finish.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: This firearm is in great shape with scattered scratches and blemishes from prior handling and use. Ejection wear is present on the slide, and the accessory rail shows localized finish blemishing. The bore is clean and shiny.
What's Included
- 5x 15-round double-stack metal magazines
- Optic mounting plates (set of three)
- OA Defense soft zippered case
- OA Defense 2311 safety/owner's manual
The 2311 Compact Pro pairs a single-action-only system with a flat-faced, skeletonized trigger and an external hammer, delivering a familiar 1911-style interface in a compact 9mm format. The serialized aluminum frame is matched to a polymer wrap-around grip module with textured panels and an integral flared magwell for confident control and fast reloads.
Controls are fully ambidextrous, including the manual thumb safeties and slide stops. This layout supports left- or right-handed operation without modification and maintains the platform’s consistent manual of arms.
The slide features forward and rear cocking serrations plus top and side window cuts. It is optics-ready via a modular plate system supporting RMR, RMSc, and DPP footprints, and it retains Night Fision H3 tritium iron sights with a high-visibility front blade for low-light aiming reference.
Feeding is via SIG P320-pattern double-stack magazines with a stated 15+1 capacity; five magazines are included. A 3-slot Picatinny accessory rail on the frame accepts compatible lights or accessories. The two-tone finish combines a tan slide with a sage-green grip module for a modern, purpose-driven look.