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 P7, P9 Extractor
H&K Heckler & Koch
$34.95H&K HK P7/P9 Extractor - Short / 7.65mm Removes spent casings from the chamber of H&K P7 and P9 pistols for reliable cycling. Compatible With: HK P7 K3HKP-22236$34.95 -
HK MP5 UCS Stock and Adapter
HKP HK Parts / Magpul
$317.95HK MP5 Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5 pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...HKP-22197$317.95 -
HKP HK P30 Magwell - Ultra Low Profile
HKP HK Parts
$59.95HKP HK P30 Magwell - Tactical Low Profile The smallest, lowest profile magwell available for the HK P30, now with a fully functional funnel for quicker, smoother reloads. Precision-machined from durable aluminum, it enhances performance without adding...HKP-22165-M$59.95 -
HK90 Series Trigger Box - Full Auto SEF- USED
H&K Heckler & Koch
$89.95H&K 90 Series F/A Trigger Box - SEF- USED UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K full-auto trigger box for 90 series firearms. Controls fire selector function and houses fire control component. Fits all...HKP-22156$89.95 -
On Sale
Fero Z-51 Night Vision Canvas Bag - OD Green - Surplus
Zeiss / Fero
Now: $19.95Was: $29.95Zeiss Fero Z-51 Night Vision Canvas Bag - OD Green - Surplus CONDITION AND COLOR MAY VARY. SEE PHOTOS. German manufactured surplus OD green canvas bag for the Z-51 night vision scope. THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE...HKP-99201Now: $19.95Was: $29.95 -
HK CC9 Firing Pin Return Spring
H&K Heckler & Koch
$5.95H&K CC9 Firing Pin Return Spring OEM firing pin return spring for the CC9 pistol that regulates firing pin movement during cycling to ensure reliable function. Compatible With: HK CC9HKP-22137$5.95 -
HK CC9 Trigger Spring
H&K Heckler & Koch
$5.95H&K CC9 Trigger Spring This CC9 trigger spring was made in Germany by H&K and provides spring tension to reset the trigger after firing. Compatible With: HK CC9HKP-22122$5.95 -
HK91, G3 A3 Retractable Buttstock - New Old Stock
H&K Heckler & Koch
$1,345.95Heckler and Koch HK91, G3 A3 Retractable Stock - New Old Stock Genuine HK A3 retractable stock the HK91 or G3. These are original HK production units that have been out of manufacture for years, making remaining NOS increasingly rare. Compatible...HKP-22104$1,345.95 -
HK USPC .45 ACP MOD 1 Compensator
HKP HK Parts
$179.95HK Parts MOD 1 Compensator: H&K USPC .45 ACP The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip and recoil, allowing you to get back on target...HKP-22072$179.95 -
On Sale
HK MP5 9mm 2 Position 0,1 FBI Style Polymer Housing - Push Pin - USED - BLEMISHED
H&K Heckler & Koch
Now: $139.95Was: $209.95H&K MP5 9mm 2 Position 0,1 FBI Style Polymer Housing - Push Pin - USED - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART...HKP-16056-PP-BNow: $139.95Was: $209.95 -
HK416, MR556 Charging Handle - E2
H&K Heckler & Koch
$153.95Heckler and Koch E2 Charging Handle for HK416, MR556 Factory HK charging handles for the MR556, HK416 platform. The standard MR556 charging handle allows the release latch to be configured on either the right or left side for user preference. The HK E2...HKP-22021$153.95 -
Out Of Stock
HK VP9, P30, HK45 Elevated Night Sights
H&K Heckler & Koch
$74.95H&K VP9/P30/HK45 Elevated Night Sights Elevated night sight set for improved visibility under low light conditions. Compatible With: HK VP9/VP9SK/VP40/VP9L ***Does NOT fit VP Optic Ready models HK...HKP-22018$74.95