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 MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Turkish Contract - Seconds
Now: $21.95Was: $26.95Turkish Contract 30 Round MP5 Magazine - Seconds These Turkish military contract 30 round MP5 magazines are leftover "seconds" that HKP recently imported directly from Turkey. The magazines were manufactured by a Turkish contractor similar to MKE...HKP-21878Now: $21.95Was: $26.95 -
On Sale
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Gen 2
KCI
$35.95 - $42.95Korean 30 Round MP5, MP5K Magazine - GEN 2 - KCI USA Compatible With: MP5, HK94, MP5SD, SP5 MP5K, SP89, SP5K Zenith, Century AP5, MKE, POF & Omega, PTR In Spec 94, MP5 & MP5K, SP89 Style Clones Features: Latest generation and factory fresh,...HKP-00955-M$35.95 - $42.95 -
HK Push Pin for Handguards and Lowers
H&K Heckler & Koch
$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,...HKP-00075$8.95 -
Out Of Stock
HK MP5, SP5 Ejector Lever - 9mm - Gen 3
H&K Heckler & Koch
$64.95H&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...HKP-00058$64.95 -
HK91, G3, PTR A2 Fixed Buttstock, Complete - OD Green - Surplus
H&K Heckler & Koch
$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...HKP-16329$25.95 -
HK91, G3 Handguard - Slimline Style - Jungle Green - Used Good
H&K Heckler & Koch
$14.95Heckler and Koch HK91 and HK 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...HKP-16266$14.95 -
On Sale
HK MP5, HK94, SP5 Handguard - Wide
HKP HK Parts
Now: $19.95Was: $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...HKP-02312Now: $19.95Was: $25.95 -
HK Roller Retainer Spring - Action 3
H&K Heckler & Koch
$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...HKP-00068$6.74 -
Out Of Stock
HK Pistol Trigger Return Spring Tool - Pliers
USA
$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...HKP-16031$17.95 -
On Sale
HK MP5, MP5K Ejector Lever - 9mm
MKE
Now: $14.96Was: $19.95MKE HK MP5/K 9mm Ejector Lever Upgrade or replace your worn ejector lever with this quality part, made for HK MP5 and MP5K 9mm models. Whether you're finishing a build or refreshing your setup, this piece helps keep your firearm running. Compatible...HKP-21920Now: $14.96Was: $19.95 -
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...HKP-00524$16.95 -
On Sale
HK91, G3, HK33, HK93 Folding Bipod - Steel
HKP HK Parts
Now: $71.95Was: $89.95HK33, HK93, HK91, G3 Folding Bipod - 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 to replicate the original HK...HKP-20834Now: $71.95Was: $89.95