# OA Defense OA-2311 Compact 9mm 4.25in Black

**Brand:** OA Defense
**Category:** Handguns
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 4.25"
- **UPC:** 850084941122
- **SKU:** UCExu9mPS

## Description

The OA Defense OA-2311 Compact STP is a 9mm semi-automatic pistol built on the 2011/2311 platform, using a dual-stack magazine rated for 17 rounds. It carries a 4.25-inch barrel and a black finish, sized down from the full-size 2311 for a more concealable package while keeping the wide, low-bore-axis grip the platform is known for. The slide is cut for optics and the safety is set up for ambidextrous use.

### Key Specifications
- **Brand:** OA Defense
- **Model:** OA-2311 Compact STP
- **Caliber:** 9mm
- **Action:** Semi Auto
- **Capacity:** 17+1
- **Barrel Length:** 4.25 inches
- **Color:** Black

### Detailed Features
- DLC-coated barrel with a contoured, weight-reduced slide
- G2 hammer and sear group tuned for a short, predictable trigger break
- Fully ambidextrous controls and an optics-ready slide cut
- Extended magazine release and a modular grip built around a 7075 aluminum magwell
- Ships with two 15-round magazines

## What Customers Say

*AI-generated insights from customer reviews*

Owners of 2011/2311-pattern pistols like the OA-2311 generally point to the double-stack grip and low bore axis as the platform's main draw, saying recoil feels flatter and follow-up shots come faster than on a traditional single-stack 9mm. Fit and finish talk trends positive when the slide-to-frame fit is tight and the trigger break is clean, though buyers new to the 2011 design sometimes find the modular grip and hammer-fired system less familiar to maintain than a simple striker gun.

Carry comments on the compact-length guns are mixed: the shorter 4.25-inch barrel and reduced grip height make the OA-2311 easier to conceal than a full-size 2311, but the frame is still wider than a typical polymer striker pistol, so some owners note it prints more under a cover garment. The optics-ready cut and ambidextrous controls get consistent praise from owners who run a red dot or shoot left-handed.

On value, buyers weigh the 2011-style features, DLC barrel, tuned trigger, aluminum magwell, against the higher price and smaller parts-compatibility pool compared to a mainstream striker pistol. Aftermarket support for the platform keeps growing, and most owners consider the added cost justified by the trigger and ergonomics once they've put rounds through it.

## Pricing

**3 offers available**

| Vendor | Price |
|--------|-------|
| Buds Gun Shop | $1823.49 |
| Classicfirearms Com | $1999.00 |
| Globalordnance Com | $1999.00 |

## Similar Products

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*Data from [GunsNation](https://gunsnation.com)*