# HK Mark 23 Tactical .45 ACP Semi-Auto Pistol - Black Finish

**Brand:** Heckler & Koch
**Category:** Full Size Handguns
**Caliber:** .45 ACP

## Specifications

- **Caliber:** .45 ACP
- **Barrel Length:** 5.9"
- **Capacity:** 10 rounds
- **Finish:** Black
- **Weight:** 38.7 oz
- **Overall Length:** 9.65"
- **UPC:** 642230261228
- **SKU:** UCBJ1Qj2S

## Description

The Heckler & Koch Mark 23 is a double/single-action semi-automatic pistol chambered in .45 ACP. It has a 5.9-inch threaded barrel, 10+1 capacity, and weighs 2.4 lbs (38.7 oz). Finish is black.

### Key Specifications
- **Brand:** Heckler and Koch
- **Model Name:** Mark 23
- **Caliber:** .45 ACP
- **Action:** Semi-Automatic (Double/Single Action)
- **Capacity:** 10+1 rounds
- **Barrel Length:** 5.9 inches
- **Weight:** 2.4 lbs (38.7 oz)
- **Finish:** Black

### Detailed Features
The Mark 23 was originally developed for the U.S. Special Operations Command (USSOCOM) offensive handgun program. The threaded barrel accepts suppressors and other muzzle devices. Ambidextrous safety and magazine release accommodate left- and right-handed users. The 3-dot sight system is straightforward for rapid target acquisition.

The polymer frame keeps weight manageable for a full-size .45. The DA/SA action allows the first shot from a decocked position in double-action, with subsequent shots in single-action. At 5.9 inches of barrel, velocity is maximized for .45 ACP loads.

## Frequently Asked Questions

**Q: What caliber is the Mark 23?**

A: The Mark 23 is chambered in .45 ACP.

**Q: Who makes the Mark 23?**

A: It is made by Heckler & Koch.

**Q: What type of firearm is the Mark 23?**

A: It is a full-size semi-automatic pistol with a double/single-action trigger.

**Q: What is the barrel length of the Mark 23?**

A: It has a 5.9-inch barrel.

**Q: How many rounds does the Mark 23 hold?**

A: It has a 10+1 capacity.

**Q: Does the Mark 23 have a threaded barrel?**

A: Yes, the Mark 23 has a threaded barrel.

**Q: Where can I buy the Mark 23?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> This is a huge gun a lot of people love it it has a threaded barrel.
>
> — [Gun For Hire](https://www.youtube.com/watch?v=x81TZcW-iw8&t=4s)

## What Customers Say

*AI-generated insights from customer reviews*

The Mark 23 draws genuine respect from serious shooters who know its SOCOM origin. Its accuracy, particularly at longer pistol distances, is consistently praised. The DA/SA trigger and ergonomics get good marks for handling during extended sessions.

The size and weight come up in almost every discussion. At 38.7 oz with a 5.9-inch barrel, it is large for everyday carry, and most users treat it as a range or duty pistol rather than a carry gun. Beginners also tend to find the platform complex relative to simpler striker-fired options.

Debates surface about whether it's better suited for tactical duty use or recreational range shooting. Aftermarket support exists but most owners prefer keeping it original. The HK brand reputation holds up across most reviews.

## Pricing

**9 offers available**

| Vendor | Price |
|--------|-------|
| Kygunco Com | $2434.30 |
| Guns Com | $2439.99 |
| Buds Gun Shop | $2504.49 |
| Gunbuyer Com | $2699.00 |
| Shootingsurplus Com | $2699.00 |
| Selwayarmory Com | $2699.00 |
| Primaryarms Com | $2699.00 |
| Gritrsports Com | $2699.00 |
| Centerfiresystems Com | $2699.99 |

## Reviews

**Average Rating:** 5.0/5 (1 reviews)

> **tommy_g2** (5/5): The Mark 23 is an exceptionally large handgun, roughly comparable in size to my Desert Eagle, so there is no mistaking its substantial presence. That bulk comes with excellent quality and impressive a...

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