H&K Mark 23 V1, .45 ACP, 5.87 in Threaded Barrel
About this product
The H&K Mark 23 V1 is a full-size .45 ACP pistol built around a cold hammer-forged, threaded barrel and a corrosion-resistant finish. It features a one-piece machined steel slide on a fiber-reinforced polymer frame and ships with two 10-round magazines. Fixed contrast sights and a long sight radius support accurate, deliberate shooting. The pistol is offered with universal accessory mounting grooves and an oversized trigger guard for gloved use.
| Manufacturer | Heckler & Koch |
|---|---|
| Model | Mark 23 V1 |
| Material | Cold hammer-forged steel barrel, machined steel slide, fiber-reinforced polymer frame (per manufacturer specs) |
| Compatibility | .45 ACP ammunition; accepts standard Mark 23 magazines and aftermarket threaded barrel accessories |
| Finish | Corrosion-resistant Hostile Environment finish on slide and barrel |
| Weight | 2.4 lbs (unloaded, with empty magazine) |
| Condition | New |
Key Features
- Cold hammer-forged, threaded barrel — WHY IT MATTERS: The 5.87-inch barrel is hammer-forged from steel, giving you superior durability and accuracy over button-rifled barrels, and the threading (common 16x1 LH) lets you mount a suppressor or compensator without sending the barrel out for work.
- One-piece machined steel slide — WHY IT MATTERS: The slide is cut from a solid billet of steel, not cast or MIM, which means tighter tolerances, less flex during cycling, and a longer service life under heavy use.
- Fixed contrast sights with long sight radius — WHY IT MATTERS: The 7.2-inch sight radius between the front and rear dots lets you align the sights faster and more precisely, critical for deliberate shots at distance or in low light.
- Universal accessory mounting grooves — WHY IT MATTERS: The frame includes a MIL-STD-1913 (Picatinny) rail under the barrel, so you can mount lights, lasers, or grips without needing an adapter or gunsmith.
- Oversized trigger guard — WHY IT MATTERS: The guard is enlarged to accommodate gloved fingers, making the Mark 23 V1 usable in cold weather or tactical environments without sacrificing trigger access.
Who It's For
The H&K Mark 23 V1 is for shooters who need a full-size .45 ACP pistol that can handle suppressed fire, heavy use, and adverse conditions. It fits military and law enforcement operators, competition shooters in USPSA or IDPA, and serious handgun enthusiasts who want a durable, accurate platform for home defense or range work.
Pros and Cons
- Pros: Cold hammer-forged barrel for accuracy and longevity; corrosion-resistant finish holds up to salt spray and moisture; oversized trigger guard works with gloves; threaded barrel accepts suppressors; Picatinny rail for accessories; two 10-round magazines included.
- Cons: Weight is higher than many polymer .45s (2.4 lbs unloaded), which can be a drawback for concealed carry; the double-action trigger pull is heavier (approx. 12 lbs) than single-action-only pistols, requiring more deliberate trigger control on the first shot.
Comparison
| Feature | H&K Mark 23 V1 | Zev Technologies OZ9 | Agency Arms Agency 2011 |
|---|---|---|---|
| Caliber | .45 ACP | 9mm | 9mm |
| Barrel Length | 5.87 in (threaded) | 4.5 in (non-threaded) | 5.0 in (non-threaded) |
| Weight (unloaded) | 2.4 lbs | 1.6 lbs | 2.1 lbs |
| Frame Material | Fiber-reinforced polymer | Polymer with steel chassis | Aluminum |
| Suppressor Ready | Yes (factory threaded) | No | No |
| MSRP | $2,699 | $2,499 | $3,200 |
Frequently Asked Questions
Is the H&K Mark 23 V1 compatible with aftermarket suppressors?
Yes. The barrel is threaded with a 16x1 LH pattern, which is the standard for .45 ACP suppressors from brands like SilencerCo, Dead Air, and Gemtech. You can mount most .45 cans directly without an adapter.
Does the Mark 23 V1 come with a case or holster?
It ships in a hard plastic case with two 10-round magazines, a cable lock, and an owner's manual. No holster is included.
What is the trigger pull weight on the V1?
The double-action pull is approximately 12 pounds, and the single-action pull is around 4.5 pounds, per H&K specs.
Can I use this pistol for concealed carry?
It is possible but not ideal. The Mark 23 V1 is a full-size handgun with a 5.87-inch barrel and weighs 2.4 lbs unloaded, making it heavy and bulky for daily concealment. It is better suited for open carry, duty use, or range shooting.
✅ Nationwide delivery (all 50 states) | ✅ Ships 1-2 business days | ✅ 30-day returns | ✅ Secure checkout
Last updated: April 2026
Explore more: Semi Auto Handguns | .45 ACP Pistols | Suppressor Ready Handguns