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 P30L, P30, P30SK Straight Trigger - Hybrid
Grayguns
Now: $84.95Was: $95.00Grayguns HK P30, P30L, P30SK Hybrid Straight Trigger The Grayguns hybrid straight trigger blends the look of a straight trigger with a slight curve to reduce trigger reach. Consider this hybrid to be the best of both worlds for your P30 platform...HKP-22329Now: $84.95Was: $95.00 -
On Sale
HK MP5K, SP5K, SP89 Folding Stock Adapter
HKP HK Parts
Now: $111.95Was: $139.95HKP MP5K/SP5K/SP89 Folding Stock Adapter The HK Parts folding stock adapter is the best option to attach onto the UMP style stock or the B&T folding stock. Will also work on any other stocks that utilizes the same mounting / folding system...HKP-20799Now: $111.95Was: $139.95 -
On Sale
HK MP5, SP5K Optic Mount - Trijicon RMR - 6.5 MOA
Trijicon
Now: $557.95Was: $619.95RMR Optic Mount - Bundle - HK MP5 Includes: (1)Trijicon RMR Type 2 Red Dot Sight 6.5 MOA Red Dot, Adjustable LED (1) MP5 RMR Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes the...HKP-20734Now: $557.95Was: $619.95 -
On Sale
HK G36C Gas Piston Rod and Spring - Complete Assembly
GSG9
Now: $65.95Was: $82.95GSG9 Complete German Gas Piston Rod and Spring Assembly for HK G36C A must have item for HK G36C conversions from SL8's or for spares for your G36C MG. A high wear and replacement part and a must have for spare parts. Compatible with: G36CHKP-18250Now: $65.95Was: $82.95 -
On Sale
HK MP5K QD End Cap with Buffer
HKP HK Parts
Now: $35.95Was: $44.95Quick Detach MP5K, SP-89 Steel End Cap With Replaceable Rubber Buffer Compatible With: MP5K SP89 Clone or other custom buildsHKP-20117Now: $35.95Was: $44.95 -
HK MP5K Trigger Housing - SEF Navy - Clipped and Pinned - 9mm - USED
H&K Heckler & Koch
$99.95H&K Heckler and Koch SEF Navy Style Clipped and Pinned Trigger Housing - USED for HK MP5K 9mm In used but good condition. Each German HK housing will have some handling marks, nicks and dings. Each housing is in perfectly useable condition, and each...HKP-19850$99.95 -
On Sale
HK VP9, VP40, P30, USPC, P2000 Mag Pouch - Single
Comp-Tac
Now: $34.95Was: $38.95Comp-Tac HK VP9/VP40/P30/USPC/P2000 Single Mag Pouch The Comp-Tac single magazine pouch is an outside the waistband holder to carry a spare magazine for competition, concealed carry or general use. The Comp-Tac single magazine pouch provides a rigid...HKP-17498Now: $34.95Was: $38.95 -
HK416, MR556 Magazine Catch
H&K Heckler & Koch
$59.95Heckler and Koch Magazine Catch for HK416 and HK MR556 New HK German manufacture magazine catch for the HK 416 and MR556 family of firearms. Compatible With: HK416, MR556HKP-15458$59.95 -
HK416, MR556, MR762 Forward Assist Assembly, Complete
H&K Heckler & Koch
$74.95H&K Heckler and Koch Forward Assist Assembly for HK416, HK MR556, and HK MR762 H&K Germany factory HK MR556 and HK416 forward assist assembly complete. Compatible With: HK 416, MR556 HK MR762HKP-16528$74.95 -
HK416, MR556, HK417, MR762 Forward Assist Plunger Spring
H&K Heckler & Koch
$5.95Heckler and Koch's Forward Assist Plunger Spring for HK416, MR556, HK417, MR762 New HK German manufacture. Compatible With: HK416, MR556 HK417, MR762 HK G28 HK M27HKP-02537$5.95 -
On Sale
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - 10 Pack
KCI
Now: $314.95Was: $349.95KCI 30 Round MP5 9mm Magazine - 10 Pack Features: Latest generation and factory fresh, individually sealed magazine 30-round capacity 9mm caliber marked (9mm x 19) Curved for more reliable feeding with steel chrome follower All steel...HKP-22058Now: $314.95Was: $349.95 -
HK MP5, HK33, HK53, HK93 A2 Fixed Stock
H&K Heckler & Koch
$139.95H&K 93,33,53 and MP5 A2 Fixed Stock This H&K G3 stock section and buttpad combo is designed to enhance the functionality and comfort of your HK 93,53 and MP5 firearm. The stock section provides improved strength and stability, while the...HKP-21818-M$139.95