The HK45 was developed as a product improvement of the highly regarded USP45, first released in the 1995. The Caliber .45 ACP HK45 includes several user-inspired enhancements including changeable grip panels (backstraps), a Picatinny MIL-STD-1913 accessory rail, better ergonomics, and more ambidextrous controls.
Along with the HK45 Compact, the HK45 was developed as a possible candidate for the Joint Combat Pistol (JCP) and Combat Pistol (CP) programs administered by the U.S. military in their search for a new service handgun to replace the 9-millimeter M9. These programs were suspended before completion and no pistols were selected.
The HK45 uses an HK proprietary O-ring barrel for precise barrel-to-slide lockup and optimal accuracy. HK45 barrels are made using the famous HK cold-hammer forging process for superior performance.
Using HK’s unique internal mechanical recoil reduction system reduces the recoil forces imparted to the weapon and shooter by as much as 30%, improving shooter control during rapid firing and increasing component service life. Capable of firing standard .45 ACP ball through +P ammunition, the HK45 combines the accuracy, modularity, reliability and minimum 20,000 round service life of the famed USP45 series with the improved ergonomics of the P2000 series pistols. HK45 models can be also be fitted with threaded barrels for use with muzzle mounted sound suppressors.
Each HK45 comes standard with an extra backstrap; medium and small interchangeable backstraps ensure an optimal fit for most shooter’s hands and complement the ergonomic profile grip.
An improved USP-style control lever, a combination safety and decocking lever, is frame mounted on the HK45 and is quickly accessible. The HK45 control lever has a positive stop and returns to the “fire” position after decocking.
By using the modular approach to the internal components first pioneered by HK on the USP, the control lever function of the HK45 can be switched from the left to the right side of the pistol to accommodate left-handed shooters (additional parts required). Left and right mounted control levers provide safety and/or decocking functions as required and can be fitted to the pistol simply by changing parts. For true ambidextrous use, a control lever can also be mounted on both sides of the pistol if required.
Well-suited for personal defense use, the HK45 is available in, or can be converted to, a wide variety of variants that use different trigger firing modes, including double action/single action (DA/SA) and DAO (double action only). The DAO mode uses the unique Heckler & Koch LEM (Law Enforcement Modification) firing system for improved double action trigger pull.
Extensively tested and operationally proven, the HK45 Series is a new paradigm for Heckler & Koch handgun design and is currently being assembled from U.S. and German made components at HK’s American manufacturing facility in Newington, New Hampshire.
Key features and system characteristics:
- Integral MIL STD 1913 (Picatinny) rail molded into the polymer frame dust cover for mounting lights, laser aimers, and other accessories
- Ergonomic grip profiles with user replaceable grip panels to adjust the feel and grip circumference of the weapon to suit individual operator hand size and shooting preference
- HK45 grip-to-slide angle matches Model 1911’s profile
- Common high-capacity metal magazines with a capacity of 10 rounds (for both HK45 and HK45 Compact models).
- Ambidextrous controls with dual slide releases and enlarged magazine release
- Uses the proven modified Browning linkless recoil operating system
- O-ring barrel for precise barrel-to-slide lockup
- Polygonal rifling for longer barrel life and better accuracy
- Improved ergonomic control levers (safety and/or decocking)
- Low profile drift adjustable 3-dot sights
- Contoured and radiused slide with forward slide (grasping) grooves and anti-glare longitudinal ribs
- Additional Information
Manufacturer Heckler and Koch SKU GAG_HK745001-A5 Condition New in Box Action Type No Caliber .45 ACP UPC 642230244702 Model HK45 V1 Type No Manufacturer Part Number 745001-A5 Accessories 2 Mags Barrel Length No Finish Per Color Black Capacity No Firing Casing Fired Case Frame Per Material Polymer Hand No Sights No
Customer Reviews 5 item(s)
- awesome service and good prices
Great gun! I have shot over 500 rounds so far and not one problem. fast shipping, friendly and knowledgeable staff. I will most certainly buy from here again.
- Great pistol.
Just got my HK45, this is the third weapon I've ordered from Grabagun.com. As always, the weapon arrived very quickly. I'm very happy with Grabagun, they have great prices. This pistol is extremely accurate, you can drive nails with it. It is rather expensive, but you get what you pay for. Overall, very pleased with this pistol.
- AWESOME GUN, JUST AWESOME!!!
Best handgun I own. Awesome ergonomics and shoots very accurately. Recoil is like a 9mm which allows for faster and accurate follow up shots. My New favorite gun by far, and I own 3 HK's. I know some people would say how can you say it's a great value. Well shoot one and you will see, plus from Grabagun, it was just over $900, which for this quality it's a steel. Bought this for my home defense, and the intruders don't have a chance! Very smooth, accurate and the power of 45 ACP, throwing some serious lead around with the recoil of a 9MM, what more can you ask for, built like a tank as well!!!
- Good Gun
This gun shoots well. Is rather large, but conforms to the hand nicely. Its single action has a really short reset, which is great. The gun is not heavy and very intuitive.
- Best 45
Best handgun Ive owned. At least in a 45. Awesome ergonomics and shoots very accurately. Recoil is like a 9mm which allows for faster and accurate follow up shots.