Description
The OA Defense 2311 Compact 9mm Plus is a double-stack, single-action 9mm carry pistol built on OA Defense’s 2311 platform. This kit pairs the 4.25-inch compact slide with the plus-capacity aluminum magwell and 17-round magazines, finished in black DLC.
OA Defense 2311 Compact 9mm Plus Overview
Our listing is OA part number OA-2311-COMPACT-STP-BLK. It uses a 7075 aluminum frame, a polymer grip module, a 4.25-inch stainless barrel and an optics-ready slide with a Dawson Precision RMR cut, Dawson fixed rear sight and fiber optic front sight. OA quotes 7.75 inches long and 5.10 inches tall, with the plus kit adding width at the magwell (1.78 inches) and bringing unloaded weight to about 29 ounces. Trigger pull is listed at 3.5 to 4 pounds. It ships with two 17-round magazines, OA’s upgraded G2 hammer and sear, a Handle-It Edge grip kit and a range bag.
The 2311 Concept
Like a 2011, the OA 2311 combines a 1911-style single-action trigger with a double-stack magazine and a modular grip. OA’s twist is a compact aluminum frame and a polymer grip module, which keeps weight close to that of a polymer striker pistol while preserving the crisp, short reset of a single-action trigger.
Carrying the Compact
At 4.25 inches of barrel, the Compact is sized like many duty-style carry pistols. The plus-capacity magwell adds grip length and a little width but gives you 17 rounds and a faster funnel for reloads. Some owners carry the flush compact magwell and keep the plus configuration for range days; check what fits your holster and wardrobe. The maker photos here show the compact with its standard magwell.
Single-Action Responsibility
A single-action pistol is carried cocked and locked, with the hammer back and the ambidextrous manual safety engaged. That system is fast and proven, but it demands training: sweep the safety off only when on target, and back on before holstering. Choose a quality holster that fully covers the trigger guard.
Optics Ready
The Dawson Precision optics kit accepts RMR-footprint red dots, a common pattern supported by Trijicon, Holosun and others. Co-witnessing with the factory sights depends on your optic height, so confirm before you buy. Fiber optic front sights are bright in daylight but do not glow in the dark the way tritium does.
Ownership Notes
2011-style pistols are more sensitive to magazine condition and lubrication than many striker guns, and spare magazines cost more. OA Defense is a smaller maker than the legacy 2011 brands, so holster selection is narrower and resale is less predictable. Budget for spare 17-round magazines and a holster cut for the 2311 Compact.
State Laws and Ownership
Pistol rules vary widely by state. California, Massachusetts and some other states only permit sales of handguns on approved rosters, and many states cap magazine capacity at 10 or 15 rounds, which would make the 17-round magazines in this kit illegal there. OA offers 10-round limited-capacity configurations for those markets. Pennsylvania buyers complete a PICS check at the receiving dealer. Confirm your state and local laws before you order.
Specifications
- Manufacturer part: OA-2311-COMPACT-STP-BLK
- Caliber: 9mm Luger
- Capacity: 17+1 (two 17-round magazines)
- Barrel: 4.25 in. stainless steel
- Action: single action, hammer fired
- Frame: 7075 aluminum with polymer grip module
- Magwell: 7075 aluminum plus-capacity
- Sights: Dawson Precision fixed rear, fiber optic front
- Optics: Dawson Precision RMR-cut optics kit
- Safety: ambidextrous manual thumb safety
- Length / height: 7.75 in. / 5.10 in.
- Weight: about 29 oz. unloaded with plus kit
- Finish: black DLC
- UPC: 850084941122
Before You Buy
Federal law requires handgun buyers to be at least 21 years old and to complete the transfer through a licensed dealer, including the ATF Form 4473 and a background check. We ship this pistol to the FFL you choose, never to a home address. Inspect it at pickup, clean and lubricate it per the manual, and store it where unauthorized users cannot reach it.
Who It Is For
The OA Defense 2311 Compact 9mm Plus is a great fit for experienced carriers and competitors who want a 2011-style single-action trigger and 17 rounds in a compact, optics-ready 9mm.
Buy the OA Defense 2311 Compact 9mm Plus at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the OA Defense 2311 Compact 9mm Plus online and ship it to your local FFL dealer, or browse our full selection of firearms for more pistols. For factory details, visit OA Defense.
Reviews
There are no reviews yet.