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H&K M723001-A5 MARK 23 12+1 45ACP 5.87" V1

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Model: M723001A5
Condition: Factory New
Bud's Item Number: 15366
UPC: 642230244924

*Please Note!! Many of our pictures are stock photos provided to us by the manufacturer and do not necessarily represent the actual item being purchased. Please verify this picture accurately reflects the product described by the title and description on this page before you place your order.

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The HK Mark 23 Caliber .45 ACP pistol gives shooters match grade accuracy equal to that of the finest custom made handguns — yet exceeds the most stringent operational requirements ever demanded of a combat handgun. The Mark 23 provides this accuracy without the need for hand-fitted parts common in custom-built match pistols costing thousands of dollars more. One of the most thoroughly tested handguns in history, the MK23/Mark 23 project originated in 1991 when HK began development for the U.S. Special Operations Command, the organization that directs the activities of America’s most elite military units, including the Navy SEALs and the Army Special Forces. On May 1, 1996, the first HK MK 23 pistols were delivered to the U.S. Special Operations Command for operational deployment, making the MK 23 the first caliber .45 ACP pistol to enter American military service since the venerable Government Model 1911A1. During testing, MK 23 pistols met the most stringent operational and accuracy requirements ever demanded of a combat handgun. Endurance testing demonstrated a service life of over 30,000 rounds of +P ammunition. To meet the reliability requirement, the pistol had to demonstrate a minimum of 2,000 mean rounds between stoppages (MRBS) with both M1911 ball and +P ammunition. All pistols exceeded the 2000 MRBS with an average of 6000 MRBS. In more than 450 accuracy test firings from a precision firing fixture at 25 meters, MK 23 pistols far exceeded the government requirement, averaging 1.44 inches, with 65 groups of less than one inch. There were four groups of .5 inches, with 5 rounds going through the same hole! The Mark 23 is available in .45 ACP


  • Threaded O-ring barrel with polygonal bore profile
  • Match grade trigger
  • One piece machined steel slide
  • Frame mounted decocking lever and separate ambidextrous safety lever
  • Can be carried “cocked and locked” in single action mode with the safety lever on
  • Patented HK recoil reduction system
  • Corrosion resistant blued finish
  • Corrosion proof fiber-reinforced polymer frame
  • Oversized trigger guard for use with gloves
  • Universal mounting grooves for installing accessories
  • Ambidextrous magazine release lever
  • Extended slide release
  • Extractor doubles as a loaded chamber indicator
  • Patented Lock-Out Safety device
Finish Matte Silver
Type Not Listed
Action Lever
Caliber 450 Bushmaster
Barrel Length 6 " & 10" Components
Capacity 17 + 1
Safety Grip safety Only
Grips Zytel
Sights Fiber Optic Front, Adjustable Rear
Weight 2.42 lbs
Finish Yellow
Type Not Valid
Action Single/Double
Caliber 25NAA
Barrel Length 2.2"
Capacity 6
Safety Slide Safety ,Decocker
Grips Polymer
Sights Novak Style
Weight 2.42 lbs
Type Kit
Action Not Valid
Caliber .22 Win Mag
Barrel Length 4.57"
Capacity 9 + 1, 11 + 1(Grip Extension)
Safety Hammer Drop/Thumb/Trigger/Key Lock
Grips White
Sights Optic
Weight 2.42 lbs
Finish Black
Type Semi-Automatic
Action Single
Caliber 45 Automatic Colt Pistol (ACP)
Barrel Length 5.87"
Capacity 12 + 1
Safety Patented Lock-Out
Grips Black
Sights 3-Dot
Weight 2.42 lbs

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Fit Charts: These 1 items are compatible with this firearm
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Operators Manual


Product Reviews
18 Reviews. Average Rating: 4.8 of 5 Stars! [4.8 of 5 Stars!]
5 stars:
89% (16 of 18)
4 stars:
6% (1 of 18)
3 stars:
6% (1 of 18)
2 stars:
0% ( of 18)
1 star:
0% ( of 18)
Reviewed By: Nathan F on 04/08/2016 Rating: 5 of 5 Stars! [5 of 5 Stars!]
I purchased a Mark 23 last year after extensive research and handling. While I\'m content with paying for Heckler & Koch products, I still find it reasonable to shop around, especially when I know what I\'m looking for. All things considered the Mark 23 is an absolute work of art, truly a great handgun (large). I enjoy shooting the Mark 23 so much that I decided to buy another as an investment piece.

The handgun is more than 10.0 inches long, however it is not as heavy as you may think given the outstanding balance to the design and the use of polymers.
Most handguns are excellent out to 25 meters, the Mark 23 will shoot 1-2 inch groups at 50 meters with very little effort beyond the basics.
Design is hearty given the intended customer, it will outlive the owner, perhaps by a few generations.
Built on P ammunition, meaning your regular .45 ACP will be even less than what was expected in terms of pressures (resulting wear).

- The Mark 23 is not intended to be concealed in normal dress, it is a duty/operational handgun for a rig or open carry via holster.
- Not a cheap firearm, you have to pay for the experience and opportunity to own one.

Highly recommended for HK buyers, polymer handguns buyers looking for a .45 ACP, or those looking for a rock solid handgun for the most difficult conditions.

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Reviewed By: Eric C on 01/28/2016 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Great transaction with Bud's again. Awesome HK pistol with the reliability you would expect. Very accurate with all types of ammunition. My friends love when I bring this thing to the range. A tad expensive but I consider it money well spent.

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Reviewed By: Terry D on 06/23/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Great pistol. People say this is a huge pistol but when they hold it they are surprised it isn't that big. When they shoot it, they go looking for one. This is the most accurate pistol I've ever shot, others say the same. It doesn't kick, my wife is expert and shoots 9mm and says this has less recoil. The Bud's price assures you it will retain it's value. It's well worth the money and you won't be upset. I'm around Navy Seals and Para Jumpers quite a bit and they tell me how great this pistol is, they all own one.

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Reviewed By: mark s on 03/14/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Another great deal from Buds. Dave n company continue to do right by the customer. Gurney is a great guy.

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Reviewed By: Xien H on 07/21/2014 Rating: 5 of 5 Stars! [5 of 5 Stars!]
A tad expensive, but worth every penny. Now I know why they call this firearm the "Zombie Slayer"! Not because I let out a fart every time I shoot it, but because of its enormous power behind each shot. I would marry this firearm, if only it was legal to marry pistols in the state of Texas, but it is not, so I guess I will just stay with my wife.........for now.....this gun is a collector's gun, and soon to be a collector's dream!

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