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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HK416, MR556, HK417, MR762 Bridge
H&K Heckler & Koch
$24.95Heckler and Koch HK416, HK MR556, HK417, and MR762 Bridge For Lowers Compatible With: HK416, MR556 HK417, MR762HKP-02676$24.95 -
HK UMP Gunsmithing Bench Mat
HKP HK Parts
$24.95HK UMP, USC Bench Mat, Gunsmithing Mat Our HK USC and HK UMP bench mat is the perfect cleaning and repair mat designed specifically for your Heckler and Koch models. Have fun and learn while you work on your favorite HK firearm. The soft top protects...hkp-17617$24.95 -
HK91, G3 Magazine Catch
H&K Heckler & Koch
$19.95Heckler and Koch Magazine Catch for HK G3 and HK91 High-quality HK German production units are brand-new. These also have the proper newer style cut in them and round shafts. Compatible With: HK91, G3 PTR91HKP-02073$19.95 -
HK91, G3 M4 Stock, Complete
PTR
$234.95PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those that want to use an AR M4 style stock on your HK rifle or SBR. Each stock set...HKP-16142$234.95 -
HK33, HK53, HK93 Firing Pin
H&K Heckler & Koch
$79.95H&K 93, 53, & 33 (5.56/.223) Firing Pin This is the factory-correct HK German firing pin and is a great replacement part. This is also a great upgrade for your HK 223.556 clones. This part is no longer available from HK as this part is out of...HKP-00192$79.95 -
HK MP5 Bolt Catch Lever - .40 S&W, 10mm
H&K Heckler & Koch
$74.95H&K Heckler & Koch Bolt Hold Open Lever - German HK - New for MP5 40, MP5 10 A great upgrade for the out-of-spec and sub-par quality part found on clone builds. Compatible With: MP5 40 MP5 10mm MP5 .357 Sig MP5 9 X 25 DillonHKP-01471$74.95 -
HK34 Cocking Tube
HKP HK Parts
$159.95HKP HK34 Cocking Tube HK34 Length Cocking Tube. Made in the USA from German & US made components. Each unit comes as pictured with the MP5/94 style locking location and hanger installed. The HK34 cocking tube will use standard MP5/94...HKP-16444$159.95 -
Out Of Stock
HK CC9 Barrel - Threaded 1/2x28
RCM
$223.95RCM HK CC9 Barrel - Threaded 1/2x28 This high-quality threaded barrel is precision-engineered to fit the Heckler & Koch CC9, providing enhanced accuracy and reliable function for both competitive shooting and everyday use. 1/2x28 right-hand...HKP-22619$223.95 -
B&T NATO A2 to HUB Suppressor Adapter
B&T Brugger & Thomet
$250.00B&T NATO A2 to HUB Suppressor Adapter Stainless steel adapter that connects NATO-spec A2 flash hiders to any 1.375x24 TPI HUB-compatible suppressor. Features a gate lock and ratchet system for secure, repeatable mounting—used by NATO forces...HKP-21723$250.00 -
HK MP5 Telescopic Stock - Cerakoted
MKE
$379.95MKE Telescopic Stock for HK MP5 and HK AP5 Transform your MP5-AP5 Clone with the essential upgrade that defines its iconic look. The A3 collapsible design delivers a customizable length of pull for unparalleled comfort and control. With a straight...HKP-21610-M$379.95 -
HK VP9SK Magwell - Low Profile
HKP HK Parts
$59.95HKP HK VP9SK Low Profile Magwell Low profile, every day carry magwell for the HK VP9SK pistol. For those that would like the enhancements and competitive advantage a mag well offers without the bulk of the larger competition magwell. Funnels mags...HKP-21456-M$59.95 -
HK MP5 ACR Stock and Adapter
Magpul
$599.95HK MP5 Magpul ACR Stock with HKP Adapter: The HKP adapter and Magpul ACR stock combo is a complete, drop-in ready unit. Magpul discontinued production of the ACR stock and we have just a few units left. Grab yours while you...HKP-21370-M$599.95