HK Mark 23 Tactical .45 ACP Pistol w/ Threaded Barrel - Black

Name: HK Mark 23 Tactical .45 ACP Pistol w/ Threaded Barrel - Black
Brand: Heckler Koch
SKU: UCBJ1Qj8F
Availability: InStock

The HK Mark 23 Tactical .45 ACP Pistol w/ Threaded Barrel - Black is a .45 ACP full size handguns from Heckler Koch. It is available from 2 vendors at $2699 to $2767.99.

HK Mark 23 Tactical .45 ACP Pistol w/ Threaded Barrel - Black - view 2

HK Mark 23 Tactical .45 ACP Pistol w/ Threaded Barrel - Black - view 3

HK Mark 23 Tactical .45 ACP Pistol w/ Threaded Barrel - Black - view 4

From $2699

Product Information

Name: HK Mark 23 Tactical .45 ACP Pistol w/ Threaded Barrel - Black

Brand: Heckler Koch

Category: Full Size Handguns

Caliber: .45 ACP

Barrel Length: 5.9"

Capacity: 12 rounds

UPC: 642230261587

SKU: UCBJ1Qj8F

Description

The Heckler & Koch Mark 23 is a full-size .45 ACP DA/SA pistol originally developed for U.S. Special Operations Command. It holds 12+1 rounds, runs a 5.87-inch threaded barrel, and comes in at 39.36 oz unloaded. The polymer frame keeps total weight reasonable given the size, and the steel slide provides the mass needed for reliable .45 ACP cycling.

Key Specifications

Manufacturer: Heckler & Koch (HK)
Model Name: Mark 23
Caliber: 45 ACP
Action Type: Double/Single Action (DA/SA)
Capacity: 12+1 rounds
Barrel Length: 5.87 inches
Overall Length: 9.65 inches
Width: 1.53 inches
Height: 5.90 inches
Weight (Unloaded): 39.36 oz (2.46 lbs)
Finish Color: Black Matte
Slide Material: Steel
Frame Material: Polymer
Safety Features: Ambidextrous manual safety
Included Accessories: Two magazines

Detailed Features

DA/SA Trigger: The double-action first shot transitions to a lighter single-action pull, giving the shooter flexibility based on preference.
Threaded Barrel: Accepts suppressors and compensators without additional gunsmithing.
Ambidextrous Safety: Works for both right- and left-handed shooters.
Fixed Sights: No adjustment needed; consistent zero for standard use.
Polymer Frame / Steel Slide: Keeps weight down without sacrificing the mass needed for reliable cycling.

Complete Specifications

Caliber	.45 ACP
Model	Mark 23
Capacity	12 rounds
Magazines included	2
Barrel length	5.9"
Overall length	9.65"
Weight	39.36 oz
Action	Single/Double Action
Finish	Blued
Color	Black
Sights	Fixed
Safety	Yes

Frequently Asked Questions

What caliber is the HK Mark 23?

The HK Mark 23 is chambered in .45 ACP.

What is the barrel length of the HK Mark 23?

It has a 5.87-inch threaded barrel.

How many rounds does the HK Mark 23 hold?

It has a 12+1 capacity.

What action type is the HK Mark 23?

The Mark 23 is a double/single action (DA/SA) pistol.

Who makes the Mark 23?

The Mark 23 is made by Heckler & Koch (HK).

What type of firearm is the HK Mark 23?

It is a full-size semi-automatic pistol with a polymer frame and steel slide.

Is the HK Mark 23 threaded?

Yes, it has a threaded barrel.

Where can I buy the HK Mark 23?

Compare current vendor offers on this page.

Customers Say

AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.

The HK Mark 23 draws a mix of genuine admiration and practical skepticism, often along the same axes.

Build quality and HK's reputation are the consistent positives. Owners describe the materials and fit as genuinely high-grade, and the pistol feels substantial and well-assembled. The threaded barrel is a major draw for suppressor users, and it is one of the few factory-threaded .45 ACP pistols available. Experienced shooters and newer owners alike report that recoil is controllable and accuracy at range is good.

The size and weight are the most common objections. At nearly 2.5 lbs unloaded and with a 9.65-inch overall length, the Mark 23 is not practical as a carry gun for most people and frames the discussion: most owners treat it as a range, tactical, or collection piece rather than a daily-carry option. Price is a frequent secondary concern -- a segment of the buyer pool considers it justified by the quality, while others find it high relative to comparably capable guns. The general consensus is that it is a purpose-specific tool that excels in its intended role but is a poor fit for conventional carry.