Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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On Sale
HK VP9, P30 UMH3 Holster - Paddle - Universal RH
UM Tactical
Now: $49.95Was: $65.00UM Tactical UMH3 Paddle RH Holster Right-handed, paddle holster for pistols equipped with the UM Tactical UM3 sight mount (Not included). Unlike conventional holsters, UM Tactical's UMH3 Universal Holster grips the pistol and the UM3...HKP-17016Now: $49.95Was: $65.00 -
Out Of Stock
HK P2000 Backstrap with Safety - Small - Black
H&K Heckler & Koch
$41.95H&K P2000 Backstrap w/ Safety - Small - Black Compatible With: HK P2000 9mm HK P2000 40 S&W HK P2000 357 SIGHKP-01564$41.95 -
Out Of Stock
HK USP Elite Barrel - .45 ACP
H&K Heckler & Koch
$499.95HK USP Elite .45 ACP Barrel The finest HK USP .45 barrel available and used in the HK Elite line of firearms from hand-selected barrel blanks. Compatible With: HK USP Elite .45 ACP Also fits the USP .45 Full Size & Tactical models but extends about...HKP-01524$499.95 -
On Sale
Thread Protector - .40 S&W - 9/16x24 RH
HKP HK Parts
Now: $9.95Was: $14.95HKP .40 S&W Thread Protector - Threaded 9/16x24 RH The HK Parts 9/16x24 thread protector is specifically designed for .40 S&W handgun barrels with 9/16x24 right-hand threading. Essential for protecting your barrel threads...HKP-17032Now: $9.95Was: $14.95 -
HK USPC Tru-Dot Rear Night Sight - Green
Meprolight
$53.95Meprolight HK USPC Tru-Dot Rear Night Sight - Green Features: Unequaled low light performance Brightest night sights available today Used by Military & Law Enforcement All Tru-Dot sights are covered by a 12 years usable illumination warranty to...HKP-16593$53.95 -
Out Of Stock
HK USPC Magazine - 10 Round - .357 SIG - Flat Floorplate
H&K Heckler & Koch
$49.00HK USP Compact 357 10 Round Magazine With Flat FloorplateHKP-02363$49.00 -
Out Of Stock
HK UMP Birdcage Flash Hider
HDPS
$154.95HDPS HK UMP (.40 S&W/.45 ACP) Birdcage Flash Hider This part is made to fit all US-made or German HK-flanged style barrels. HK no longer makes a flash hider for the UMP Subgun. This is the much anticipated HDPS bird cage style UMP...HKP-02694$154.95 -
HK UMP, USC Hammer Spring - Right
H&K Heckler & Koch
$14.95HK UMP & USC Right Side Hammer Spring For LowersHKP-01892$14.95 -
On Sale
HK UMP Caliber Conversion to .40 S&W Kit - 7.87" Barrel - 30 Round Magazine
Michaels Machines
Now: $849.95Was: $999.95HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple drop-in conversion. The time required to change...HKP-18754Now: $849.95Was: $999.95 -
Out Of Stock
$4.95 -
HK21E, HK23E Backplate
H&K Heckler & Koch
$289.95H&K 21E/23E(7.62x51/.308) & (5.56/.223) Backplate These factory German HK21E/23E back plates are no longer in production. Grab yours before they are gone for good!HKP-00241$289.95 -
HK91, G3 Trigger Pack - Ambi 0,1
HKP HK Parts
$362.95HK Parts and Heckler and Koch 2 Position 0,1 Ambidextrous Trigger Pack for HK91, and HK G3 Finally, a lower cost alternative to the expensive and rare all-German FBI and 0,1 ambi trigger packs. Each trigger pack comes 100% complete, ready to use...HKP-17232$362.95