# OA Defense 2311 Compact 9mm 4.25in Black

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

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 4.25"
- **UPC:** 850084941108
- **SKU:** UCExu9mPE

## Description

The OA Defense 2311 Compact ST is a single-action, semi-automatic 9mm pistol on the 2311 platform, built with a 4.25-inch barrel and a 15+1 round capacity. It pairs a black 7075 aluminum frame with a stainless slide and a polymer grip, and it runs on SIG P320-pattern magazines. The slide is optics-ready and the controls are fully ambidextrous.

### Key Specifications
- **Brand:** OA Defense
- **Model:** 2311 Compact ST
- **Caliber:** 9mm
- **Action:** Single Action
- **Capacity:** 15+1
- **Barrel Length:** 4.25 inches
- **Frame Material:** 7075 Aluminum
- **Slide Material:** Stainless
- **Finish:** Black

### Detailed Features
- Optics-ready slide for mounting a red dot sight
- Fully ambidextrous controls for the slide release and safety
- Fiber optic front sight for a fast sight picture
- Compatible with SIG P320-pattern magazines
- Compact 2311-platform frame sized for carry and range use

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the 2311 Compact ST usually come from the double-stack 2011 world and like getting that same wide-magazine capacity in a smaller, carry-friendly size. The aluminum frame and stainless slide combination is generally seen as durable, and most owners report smooth cycling once the pistol is broken in.

The single-action trigger and ambidextrous controls are frequent points of praise, especially from left-handed shooters who often have fewer compact 2011-style options to choose from. The fiber optic front sight is liked for quick target acquisition, though some owners add a red dot given the optics-ready slide.

On value, the 2311 Compact ST sits in the middle of the 2011 market: not the cheapest option, but priced below premium custom builders. SIG P320 magazine compatibility is a plus for owners who already own P320 magazines and want to share stock between guns.

## Pricing

**3 offers available**

| Vendor | Price |
|--------|-------|
| Buds Gun Shop | $1733.99 |
| Classicfirearms Com | $1899.00 |
| Globalordnance Com | $1899.00 |

## Similar Products

- [OA Defense 2311 Compact Pro 9mm 4.25in Black](https://gunsnation.com/p/oa-defense-2311-compact-pro-9mm-4-25in-black/UCExu9mQ4)
- [OA Defense OA-2311 Compact 9mm 4.25in Black](https://gunsnation.com/p/oa-defense-oa-2311-compact-9mm-4-25in-black/UCExu9mPS)
- [OA Defense 2311 Compact Pro 9mm Luger 4.25in Black](https://gunsnation.com/p/oa-defense-2311-compact-pro-9mm-luger-4-25in-black/UCExu9mPq)
- [OA Defense 2311 Compact Pro Elite 9mm Luger 4.25in Black](https://gunsnation.com/p/oa-defense-2311-compact-pro-elite-9mm-luger-4-25in-black/UCExu9mR3)
- [OA Defense 2311 Compact Pro 9mm 4.25in Black](https://gunsnation.com/p/oa-defense-2311-compact-pro-9mm-4-25in-black/UCExs9S1e)
- [OA Defense 2311 Compact Pro 9mm 4.25in Black](https://gunsnation.com/p/oa-defense-2311-compact-pro-9mm-4-25in-black/UCExs9S8n)

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