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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HK45 Compact LEM Hammer Spring
H&K Heckler & Koch
$9.95Hammer Spring For HK 45C LEM Models This hammer spring is the factory correct LEM hammer spring for the HK45C and HK45CT. This is the spring needed to use any other variant of LEM kit to be complete to be used on the HK45C pistol. This is also a great...HKP-15789$9.95 -
HK45, HK45T Firing Pin
H&K Heckler & Koch
$45.99HK 45 & 45 Tactical Firing Pin A must-have spare part for your HK45 pistol. Compatible With: HK45 HK45 TacticalHKP-02221$45.99 -
HK P7M13 Barrel - 9mm
H&K Heckler & Koch
$479.95H&K HK P7M13 9mm Barrel Brand new HK German P7M13 factory spare barrel. Cold hammer forged and the real deal. No longer made or available as all HK P7 parts are out of production. Compatible With: HK P7M13HKP-17907$479.95 -
HK P7 Series Trigger Pin/Cylindrical Pin
H&K Heckler & Koch
$8.95HK P7 Series Trigger Pin/Cylindrical Pin Compatible With: PSP P7M8 P7M10 P7M13HKP-01319$8.95 -
$10.95 -
HK VP9, P30, HK45 Front Sight 6.3mm - Red
H&K Heckler & Koch
$59.95Red Phosphorescent Front Sight - 6.3mm Compatible With: HK VP9, VP9SK & VP40 HK P30, P30L, P30SK HK45 & HK45 CompactHKP-18831$59.95 -
HK P Series Hammer Axle
H&K Heckler & Koch
$51.95HK P Series Hammer Axle Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P2000 HK P2000SK HK P30 HK P30L HK P30SKHKP-01797$51.95 -
Out Of Stock
HK P2000 Barrel - 9mm - 3.36"
H&K Heckler & Koch
$234.95New HK German HK P2000 Barrel 9mm Brand new cold hammer forged 9mm P2000 barrel. Perfect for those who want to have a spare or for caliber conversion swaps.HKP-01570$234.95 -
HK MR556, CR556, MR762 Rail Segment - 20 Slots - H-Key
HKP HK Parts
$49.95HKP HK MR556/CR556/MR762 H-Key 20 Rail Segment 20 slot rail segment for the new "HKey" style forearms. This rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models...HKP-17848$49.95 -
HK416, HK417, MR556, MR762 Long Disconnector Spring
H&K Heckler & Koch
$9.95H&K HK MR556/MR762/416/417 Long Disconnector Spring HK German manufactured disconnector spring. This is the longer of the 2 springs found in the trigger/sear assembly. Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-16774$9.95 -
HK416, MR556 Magazine Follower - Steel Maritime
H&K Heckler & Koch
$14.95H&K HK MR556/416 Steel Maritime Magazine Follower Compatible With: HK 416 factory magazines such as 30, 20 and 10 roundHKP-15452$14.95 -
HK G36 Hammer Spring - Right Side
H&K Heckler & Koch
$8.95HK G36 Right Side Lower Hammer SpringHKP-01857$8.95