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 MP5 9mm Parts Kit 100% German - A2 Stock - SEF Lower
H&K Heckler & Koch
$2,239.95HK German MP5 9mm Used Parts Kit Complete (Minus Receiver) All MP5 Kits Include: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto 2 small and 1 large Push Pin 30-Round Curved...HKP-00771$2,239.95 -
HK94 Owners Manual - Red
H&K Heckler & Koch
$18.95Heckler and Koch HK94 Owners Manual - Red Original-style HK94 owner’s manual in red. Ideal for HK94 and other HK semi-auto platforms, and a useful reference for basic operation, maintenance, and safety information. Compatible...HKP-00105$18.95 -
HK MP5, HK94, HK34 Barrel - 9mm - 16.175" - Threaded 1/2x28
RCM
$249.95RCM MP5, HK34, HK94 Barrel - 9mm - 16.175"- Threaded 1/2x28 Each barrel is meticulously crafted from premium cold hammer forged (CHF) 41V45 steel, expertly profiled and chambered with a 16-flute chamber profile. Finished with a highly durable nitrided...HKP-17761$249.95 -
On Sale
HK91, G3, PTR Magazine - 20 Round - Steel - USED
Rheinmetall
Now: $24.95Was: $34.95Rheinmetall HK91, G3, PTR Magazine - 20 Round - Steel - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTS AND PITTING USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. G3 steel mags were made for the...HKP-22495-USEDNow: $24.95Was: $34.95 -
HK416, MR556 Upper Receiver - Stripped - No Forward Assist
H&K Heckler & Koch
$489.99HK416, MR556 Upper Receiver - Stripped - No Forward Assist Genuine HK HK416 upper receiver designed for HK416 and MR556 rifle platforms. This stripped receiver does not include a forward assist or ejection port door. Compatible With HK416, MR556 MR223HKP-22506$489.99 -
HK P30, P30L Parabellum Loadout
HKP HK Parts
$0.00HK P30, P30L Parabellum Loadout Whether you are a fan of the movie or just want the best upgrades for your P30, the Parabellum Loadout checks all the boxes. Kit your HK out to your preference with our select go-fast upgrades. Options: HKP...HKP-22469-KIT$0.00 -
Out Of Stock
HK G36 Cheek Riser for Folding Stock
Haga Defense
$82.00Haga Defense Cheek Riser for HK G36, HK G36C, HK G36K, HK G36 .22LR Folding Stocks Cheek riser for HK G36 rifles and compatible stocks. Raises cheek weld by ~20mm for proper sight alignment with iron sights, red dots, and low-mounted optics. Made from...HKP-22359$82.00 -
HK VP9A1 K Magazine Replacement Kit
H&K Heckler & Koch
$23.95HK VP9A1K Magazine Replacement Kit Magazine replacement kit with all necessary components: spring, floorplate, and locking plate. Compatible With: HK VP9A1 KHKP-22300$23.95 -
Century Arms AP5-P, AP5-M Handguard with Handstop
MKE
$34.95MKE AP5-P/M Handguard with Hand Stop MKE handguard for the MKE manufactured Century AP5-P and AP5-M. Please note: Will fit other MP5K style receivers with some slight fitting. Compatible With: MKE/Century Arms AP5-P MKE/Century Arms...HKP-22221$34.95 -
Out Of Stock
HK417, MR762, G36 Flash Hider - ROTEX SF - Threaded 15x1 RH
B&T Brugger & Thomet
$119.95B&T Brugger and Thomet Flash Hider fits our HK417, HK MR762, and HK G36 - ROTEX SF B&T flash hider for any 5.56/.223 or 7.62x51/.308 firearm threaded in 15x1 RH. Compatible With: HK416 HK417 HK MR556 HK MR762 HK G36 Rifles threaded 15x1 RHHKP-22162$119.95 -
HK CC9 Recoil Spring Support
H&K Heckler & Koch
$5.95H&K CC9 Recoil Spring Support Genuine H&K, this recoil spring support for the CC9 pistol guides and supports the recoil spring during cycling. Compatible With: HK CC9HKP-22113$5.95 -
HK CC9 Magazine Release Button
H&K Heckler & Koch
$19.95H&K CC9 Magazine Release Button Made in Germany, this magazine release button for CC9 pistol allows the user to release the magazine from the frame. Compatible With: HK CC9HKP-22111$19.95