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 Push Pin for Handguards and Lowers
H&K Heckler & Koch
Now: $8.05Was: $8.95H&K HK Push Pin - Forearm with Lower - Small Push Pin All steel HK German small push pin for use on the lower grip housing. The small push pin is also the correct pin for holding the HK forearm in place. Compatible With: HK91, HK G3, PTR HK93, 33,...Now: $8.05Was: $8.95 -
On Sale
KCI 30 Round MP5 9mm Magazine
KCI
$35.99 - $43.15Korean 30 Round MP5, MP5K Magazine - GEN 2 - KCI USA Compatible With: HK MP5, HK94, MP5SD, HK SP5 HK MP5K, SP89, SP5K Zenith, Century AP5, MKE, POF & Omega, PTR In Spec 94, MP5 & MP5K, SP89 Style Clones Features: Latest generation and factory...$35.99 - $43.15 -
HK91, G3 Handguard - Slimline Style - Jungle Green - Used Good
H&K Heckler & Koch
$14.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Good Used German Military surplus jungle green Slimline Forearm with Heat Shield. Each item is used in good shape and will clean up nicely with a little bit of TLC and some attention...$14.95 -
Out Of StockOn Sale
HK MP5, SP5 Ejector Lever - 9mm - Gen 3
H&K Heckler & Koch
Now: $53.96Was: $59.95H&K Heckler & Koch's HK Ejector Lever - 9mm - Gen 3 - Latest 3rd Generation The German latest generation ejector has all of the upgrades and improvements made since the MP5 was introduced over 50 years ago. Fits all of the HK 9mm...Now: $53.96Was: $59.95 -
On Sale
HK MP5, HK94, SP5 Handguard - Wide
HKP HK Parts
Now: $18.16Was: $25.95HKP MP5, SP5, & HK94 Wide Forearm - USA This MP5 forearm is also known as the tropical wide forearm. Made from the same polymer material to factory HK specs in the US. Compatible With: MP5, HK94 MP5 40/10 Zenith, AA, MKE, POF MAC-5 clones...Now: $18.16Was: $25.95 -
On Sale
Fixed Stock - OD Green - Surplus - HK91, G3, PTR
H&K Heckler & Koch
Now: $23.36Was: $25.95Fixed Stock - OD Green - Surplus - HK 91, G3, PTR Used Olive Drab green German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts to be a complete stock ready to use on...Now: $23.36Was: $25.95 -
On Sale
HK Spring - Roller Holder - Retainer - Action 3
H&K Heckler & Koch
Now: $6.07Was: $6.74H&K Heckler & Koch HK Spring - Roller Holder - Retainer - Action 3 Roller Retainer Spring Second-generation roller holder. Each retainer fits all Action 3 9mm MP5 & MP5K bolt heads & MP5 40/10 bolt heads. The roller retainer spring...Now: $6.07Was: $6.74 -
On Sale
HK VP9 Optic Mount - #2 - Trijicon RMR
HKP HK Parts
Now: $34.97Was: $49.95HKP HK Parts HK VP9 Mount - Optic - #2 - Holosun, RMR The finest all steel mounting solution for your HK VP9 Series Optic Ready model. New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of ordnance grade steel,...Now: $34.97Was: $49.95 -
HK91, G3, PTR Magazine - 20 Round - Aluminum - EXCELLENT/LIKE NEW
H&K Heckler & Koch
$16.95HK G3, HK91, & PTR91 German 20 Round Magazine - Alloy German Manufactured Aluminum Paratrooper Magazines In Excellent - Like New Condition Perfect for your HK G3/PTR style firearm. Each unit is German manufactured, and a great deal for the condition...$16.95 -
On Sale
HK Pistol Trigger Return Spring Tool - Pliers
USA
Now: $16.16Was: $17.95HK Trigger Return Spring Tool - Pliers The HK Parts trigger return spring pliers are a must-have tool born from necessity. If you've ever attempted to replace the trigger return spring on an HK pistol, you understand how challenging this task can be. Our...Now: $16.16Was: $17.95 -
On Sale
HK 10 Round HK VP9/P30 9mm Magazine
H&K Heckler & Koch
Now: $49.46Was: $54.95HK VP9/P30 9mm 10 Round Magazine New HK German manufacture. Each magazine holds ten rounds only. This is the factory-correct magazine, not a knock-off or pinned 15-round magazine. Compatible With: HK VP9, VP9B, VP9L, VP9 OR, VP9 Match, VP9 A1 F HK...Now: $49.46Was: $54.95 -
On Sale
HK33, HK93, HK91, G3 Folding Bipod - Steel
H&K Heckler & Koch
Now: $79.16Was: $87.95H&K Heckler & Koch HK33, HK93, HK91, G3 Bipod - Folding - Steel Finally, an aftermarket solution for HK enthusiasts who have been searching after that perfect bipod to finish out their build. The HK Parts bipod was painstakingly developed...Now: $79.16Was: $87.95