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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HK VP9 Trigger Return Spring for Ultra Match Trigger
HKP HK Parts
$9.95HKP HK VP9 Ultra Match Trigger Return Spring Ultra Match trigger return spring will give your VP9 and VP40 an even smoother, crisper, and lighter pull. This helps promote consistent match-grade...HKP-21164$9.95 -
HK45 Magazine with Extension - 15 Round
HKP HK Parts / Heckler & Koch
$113.95HKP HK Parts and Heckler and Koch 15 Round Magazine for HK45 HK45 and HK45 tactical +5 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a...HKP-20788$113.95 -
HK33, HK53, HK93, HK91, G3 Bolt Locking Lever Spring for Bolt Head
H&K Heckler & Koch
$4.95HK Bolt Carrier Bolt Locking Lever Spring New HK German factory bolt carrier locking lever spring for locking lever latch. Compatible With: HK G3, HK91 PTR modHKP-16274$4.95 -
HK G3 Pistol Grip - PSG1 Sniper Style
AC-Unity
$39.95AC-Unity HK PSG1 Style Sniper Pistol Grip The new AC Unity Pistol Grip/Sniper Grip is a great upgrade if you want the PSG1 style grip frame for your HK firearm. The grip features an ambidextrous palm...HKP-21628$39.95 -
HK USP Compact Straight Trigger
Grayguns
$95.00Grayguns HK USP Compact Straight Trigger Designed by Keith Hosey, Grayguns’ director of gunsmithing, the HK USPC Straight Trigger is a first-of-its-kind. The trigger reduces over-travel while...HKP-21073$95.00 -
HK P7 Series Firing Pin Spring
H&K Heckler & Koch
$7.95HK P7 Series Firing Pin Spring This item is a great spare to keep on hand, as this item is considered a high-wear item by HK. Compatible With: HK P7 PSPHKP-00326$7.95 -
HK VP9SK, P30SK Magazine - 9mm - 12 Round - Flat Floorplate
H&K Heckler & Koch
$58.95Heckler and Koch 12 Round Flush Floorplate 9mm Magazine for HK VP9SK, P30SK Factory 12-round 9mm magazine with a flush-fit floorplate designed for compact HK pistols. Provides proper fit and...HKP-20603-M$58.95 -
HK VP9, VP9SK, VP40 Enhanced Slide Cap - Red
HKP HK Parts
$29.95Enhanced Slide Plate Cover VP9, VP9SK & VP40 - HK Red Enhanced HK VP9, VP40 Alloy Slide Plate. This enhanced model covers has no firing pin viewing window and is enlarged as MUCH as possible to seal...HKP-17857$29.95 -
Out Of Stock
HK USP, USP Compact Match Hammer
H&K Heckler & Koch
$103.95HK Match Hammer This is the factory-correct match hammer marked with the factory-correct "S" marking on the left-hand side of the hammer. Compatible With: HKHKP-02602$103.95 -
HK P7 Series Extractor Spring
H&K Heckler & Koch
$7.95HK P7 Extractor Spring This is a common wear and replacement part, according to HK Germany. This is a great part to have on hand as a spare. Compatible With: P7 PSPHKP-00325$7.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style
H&K Heckler & Koch
$31.95Heckler and Koch Handguard Locking Screw for your HK416, MR556, HK417, MR762 Replacement handguard locking screw that secures the handguard to the upper receiver. This version features the "X"...HKP-02680$31.95 -
On Sale
HK51, PTR PDW Backplate With Recoil Rod
PTR
Now: $82.46Was: $149.95HK51, PTR PDW Backplate With Recoil Rod Each unit has been built with new HK parts and painted HK black, ready for use. The PTR PDW is the collapsible recoil-style assembly designed for use on...HKP-02665Now: $82.46Was: $149.95