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, SP5K Optic Mount - 5 - 5/8" - MLI - Picatinny Rail
H&K Heckler & Koch
$359.99HK German Low Profile Mount for HK MP5, SP5 & MP5K, SP5K - MLI HK German manufactured HK MP5, MP5K low profile Picatinny scope mount. Manufactured at HK in Germany as part of the "Mid-Life Improvement" upgrade for the HK MP5 family of firearms. The...HKP-17629$359.99 -
HK33, HK53, HK93, HK91, G3 Buffer Screw Locking Washer - Zinc Plated
H&K Heckler & Koch
$0.25HK G3, 91, PTR & HK93, 33, 53 - Locking Washer For Small Buffer Screws New not surplus latest generation of G3, 91, PTR toothed locking washer. Zinc plated (galvanized) as to not corrode or rust like the older style units found on surplus stocks...HKP-17882$0.25 -
HK P2000, USPC Magazine - 12 Round - .40 S&W
H&K Heckler & Koch
$49.00H&K 12 Round HK P2000/USPC .40 S&W Magazine New HK German manufacture. All steel with rubberized floorplate with finger rest. Compatible With: HK USP Compact .40 Cal HK P2000 .40 Cal Will also fit the P2000SK .40 (will not fit flush)HKP-00313$49.00 -
HK VP9 Optic Plate #8 - Holosun 407K, 507K - Red Dot Pistol Mount
HKP HK Parts
$49.95HK VP9 Series Optics Plate #8 - Holosun 407K/507K Optic Mount - Steel 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...HKP-20016$49.95 -
HK VP9 Thumb Rest Takedown Lever
Align Tactical
$59.95Align Tactical HK VP9 Thumb Rest Takedown Lever The Align tactical thumb rest takedown lever integrates an ergonomic ledge for the support hand’s thumb to firmly lock down against, serving as a brake against muzzle flip to provide the fastest...HKP-20590$59.95 -
On Sale
HK91, G3 Rubberized Mag Pouch - Surplus
Now: $4.95Was: $9.95German Surplus Green Rubberized Mag Pouch Used Compatible With: HK G3, 91, PTR & CETME Custom HK builds & HK Clones Please note: These range in shades of green color from OD green to Jungle green. If you have a preference please make a note...HKP-16321Now: $4.95Was: $9.95 -
HK P30, P30L, P30SK Straight Trigger
Grayguns
$95.00Grayguns HK P30/P30L/P30SK Straight Trigger Designed by Keith Hosey, Grayguns' director of gunsmithing, the HK P30 Straight Trigger is a first-of-its-kind in the market. Fits all P30 variants. Reduces over-travel while featuring a 90-degree optimal...HKP-19748$95.00 -
HK MP5K, SP5K, SP89 Folding Stock
B&T Brugger & Thomet
$275.00B&T Brugger and Thomet HK MP5K, SP5K, SP89 Folding Stock Factory Swiss-made B&T folding stock for MP5K-pattern firearms. This military-grade stock is built to the same specifications B&T supplies to OEM contracts and installs using standard...HKP-00172$275.00 -
On Sale
HK MP5 Handguard - Wide - M-LOK
HKP HK Parts
$39.95 - $49.95HKP HK MP5 M-LOK Wide Forearm MP5 Wide handguard with M-LOK slots to quickly and easily attach any M-LOK style accessory. This is a great option for those that want to keep a factory MP5 look and still have the ability to add vertical grips,...HKP-21437-M$39.95 - $49.95 -
HK MP5, SP5, AP5 Handguard - SL
Magpul
$49.95Magpul HK MP5, HK SP5, HK AP5 SL Handguard The Magpul SL handguard for the HK MP5 is a high-strength, injection-molded polymer handguard solution that provides the user with improved ergonomics and anti-slip texturing. It also includes M-LOK®...HKP-19309-M$49.95 -
Out Of Stock
HK USPC, P2000 Magazine - 9mm - 13 Round
H&K Heckler & Koch
$49.00H&K HK 13 Round USPC/P2000 9mm Magazine Each magazine is a current HK German manufacturer. Brand new and factory fresh. Compatible With: HK USP Compact 9mm HK P2000 9mm Fits the P2000SK will stick out below the magwell when installedHKP-00312-M$49.00 -
HK MP5, SP5, MP5K, SP5K Magazine - 15 Round - 9mm
H&K Heckler & Koch
$99.95Heckler and Koch German MP5, MP5K, SP5, SP5K - 15 Round Magazine Brand new factory fresh German HK 15 round curved magazine. Each magazine is stamped 9X19mm and is a new HK German production. Compatible With: MP5, SP5 MP5K,...HKP-02409$99.95