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 USP, P2000, HK45 Trigger Return Spring - Light
H&K Heckler & Koch
$7.95Heckler and Koch Light Trigger Return Spring for HK USP, HK P2000, and HK45 Great for LEM and standard variant conversions. Each spring should be used along with the light-firing pin block spring, as shown below in the related items. Compatible With: HK...HKP-02081$7.95 -
HK VP9, P30, VP9SK, P30SK, P2000SK Magazine Sleeve
X-Grip
$15.95HK VP9/P30 To VP9SK, P30SK & P2000SK XGRIP Sleeve Patent pending OEM factory accessory for the HK VP9SK, P2000SK & P30SK that allows the addition of the HK VP9, P30 magazine to be added that enhances the versatility, look, and feel of the gun...HKP-16669$15.95 -
HK VP9, P30, HK45, USP Firing Pin Block Spring - Enhanced
Lazy Wolf
$9.95Lazy Wolf HK VP/P30/USP/HK45 Enhanced Firing Pin Block Spring An exciting and desirable new offering as a joint collaboration from the widely renowned Master HK pistol smith Lazy Wolf Guns & HK Parts! This spring was designed by master pistol smith...HKP-18110$9.95 -
HK MP5, MP5K Bolt Group Backup Kit - Action 3
H&K Heckler & Koch
$22.95H&K MP5 Bolt Group Backup Kit - Action 3 This kit includes the highest wear and replace items on the MP5 action 3 bolt group, as well as the easy to lose pin. Includes: Factory German MP5 9mm Extractor Spring Factory German Action 3 Roller...HKP-16993$22.95 -
HK MP5 Optic Mount - .22LR
MFI
$109.95Low Profile Scope Mount For All HK MP5 .22's (HK, Walther, & Umarex) & ATI GSG-5 Pistols Or Rifles Just released the latest second-generation MFI Low Profile Scope mount for the Umarex HK MP5 & GSG-5 models. MFI scope mount offers the lowest...HKP-02389$109.95 -
HK MP5K, SP89, SP5K Folding Brace - 9mm - Polymer
SB Tactical
$119.99HK MP5K, SP89, SP5K & Clone - Side Folding Pistol Stabilizing Brace MP5K, SP5K, Zenith Z5P, Z-5K Folding Stabilizing Brace System. This is current production with a polymer brace adapter. ***Please note some clones will need some slight fitting...HKP-21358$119.99 -
HK MP5 Optic Mount - Minimalist - Picatinny
HKP HK Parts
$97.95HKP HK MP5 Minimalist Picatinny Rail Optic Mount Our new Picatinny style optic mount is a game changer for those who want a minimalist look on their MP5 or MP5K. You can have a Picatinny rail without compromising all the real estate that other...HKP-21072$97.95 -
HK German Sling Hook
H&K Heckler & Koch
$8.95H&K German Sling Hook New old stock HK German sling hook. Made from steel not the cheap aluminum or zinc offerings found elsewhere. Made in Germany. Great For HK sling projects and for spares. The real deal. This is the sling hook that all others...HKP-19433$8.95 -
On Sale
HK MP5, MP5K Replacement Parts Kit
MKE
Now: $19.95Was: $24.95MKE Replacement Parts Kit for your HK MP5 and HK MP5K Firearm Keep your MP5 or MP5K in peak condition with this comprehensive MKE HK MP5/MP5K replacement parts kit. Manufactured to exacting standards by MKE, this kit includes high-quality replacement...HKP-21896Now: $19.95Was: $24.95 -
HK53 Recoil Rod Assembly - Steel
USA
$44.95HKP HK53 Recoil Rod Assembly - Complete - Steel US-made HK53 recoil rod assembly built to correct HK specifications. The steel rod is micro-polished and uses serviceable end caps for easy spring replacement. Each unit includes a factory German HK53...HKP-16752$44.95 -
HK33, HK53, HK93 Magazine - 30 Round - Steel
H&K Heckler & Koch
$72.95HK93, HK33, & HK53 - 30 Round Magazine HK Factory German. All-steel latest production magazine and hard to find. This magazine was discontinued in 2021 and is no longer in production. Stock up as we have the last remaining units available...HKP-00484$72.95 -
HK MP5, MP5K Cocking Handle
HKP HK Parts
$29.95HKP MP5, MP5K Cocking Handle Our HK Parts US-made cocking handle, a precise replica of the German design. It seamlessly complements your other accessories, making it an essential addition to any build. Whether you need a reliable spare or want to elevate...HKP-00653-M$29.95