# Heckler & Koch Mark 23 .45 ACP 5.87in OD Green

**Brand:** Heckler & Koch
**Category:** Semi-Automatic Handguns
**Caliber:** .45 ACP

## Specifications

- **Caliber:** .45 ACP
- **Barrel Length:** 5.87"
- **UPC:** 642230269972
- **SKU:** UCBJ1QlJU

## Description

The Heckler & Koch Mark 23 is a semi-automatic pistol chambered in .45 ACP with a 5.87-inch threaded barrel. It has an OD Green frame paired with a black slide and holds 12 rounds. Sights are 3-dot style and the threaded barrel accepts standard suppressor-ready muzzle devices.

### Key Specifications
- **Brand**: Heckler & Koch
- **Model**: Mark 23
- **Caliber**: .45 ACP
- **Action**: Semi Auto
- **Capacity**: 12+1
- **Barrel Length**: 5.87"
- **Color/Finish**: OD Green / Black

### Detailed Features
- 5.87-inch threaded barrel
- OD Green frame with black slide
- 12-round magazine capacity
- 3-dot sight system
- Double-action trigger mechanism

## Frequently Asked Questions

**Q: What caliber is the Heckler & Koch Mark 23?**

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

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

A: The Mark 23 is made by Heckler & Koch.

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

A: It is a semi-automatic pistol with a double-action trigger.

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

A: The barrel is 5.87 inches long and is threaded.

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

A: It has a 12+1 capacity.

**Q: Is the HK Mark 23 barrel threaded?**

A: Yes, the 5.87-inch barrel is threaded.

**Q: What finish and color does the HK Mark 23 come in?**

A: It has an OD Green frame paired with a black slide.

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

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The HK Mark 23 has a devoted following among collectors and those who want a large-format .45 ACP pistol with genuine military heritage. Owners consistently cite the build quality as exceptional, with tight tolerances and a finish that holds up under heavy use. The OD Green and black two-tone is the classic configuration that most buyers seek out.

The 5.87-inch threaded barrel and overall size mean this is not a carry pistol for most people. Owners use it primarily at the range or as a safe queen, and a few run it suppressed given the threaded barrel. The double-action trigger is smooth by .45 ACP standards, though the long reset is a point of discussion among competitive shooters.

At its price point the Mark 23 is a premium purchase that does not apologize for its cost. Buyers who understand what they are getting accept the trade-offs. Those who want a compact carry .45 typically look elsewhere, but for the full-size platform the Mark 23 remains a benchmark.

## Pricing

**14 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $2308.99 |
| Kygunco Com | $2361.27 |
| Gritrsports Com | $2390.99 |
| Centerfiresystems Com | $2425.99 |
| Buds Gun Shop | $2451.99 |
| RK Guns | $2499.97 |
| Palmettostatearmory Com | $2500.99 |
| Deguns | $2532.99 |
| Grabagun Com | $2549.99 |
| Gunbuyer Com | $2699.00 |

*...and 4 more offers*

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