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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HK MP5SD Sealing Ring - Enhanced
HKP HK Parts
$9.95HKP HK Parts Enhanced Sealing Ring for HK MP5SD The enhanced sealing ring is made from a newer, longer-lasting material as well as having a slightly thicker profile for secure sealing. The MP5SD sealing ring is the gasket that seals the SD...HKP-18053$9.95 -
On Sale
HK P30, P30L Magwell - Low Profile
HKP HK Parts
$38.22 - $59.95HK P30, P30S & P30L Tactical Low Profile, EDC Magwell - 9mm & .40 Cal This low-profile mag-well is for the average everyday P30 owner who would like the enhancements and competitive advantage a mag-well offers without the bulk of the larger...HKP-21150-M$38.22 - $59.95 -
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 -
HK Semi Auto Spacer with Elbow Spring - Match Grade
PTR
$11.95PTR Semi Auto Spacer With Elbow Spring - Match Grade For use on all HK semi-auto trigger packs. It's a must-have for those converting a full auto trigger pack to semi-auto. This unit provides a "match" grade feel to your trigger pull.HKP-00838$11.95 -
Out Of Stock
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 -
HK P2000, USPC Magazine - .40 S&W - 12 Round
H&K Heckler & Koch
$49.00 - $49.95Heckler and Koch German 12 Round Magazine for USP40 Compact and P2000 - .40 S&W HK German 12-round magazine for USP40 Compact and P2000 pistols chambered in .40 S&W. Built with all steel construction and a rubberized floorplate with finger rest...HKP-00313-M$49.00 - $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 -
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 -
M-LOK Vertical Foregrip - Long
HKP HK Parts
$24.95HKP Universal M-LOK Long Grip This grip is by far the nicest grip we have encountered for the money. This rock solid grip is a must have for anyone that uses a vertical grip. This is the only vertical grip out there that offers a built in aluminum...HKP-20680$24.95 -
HK MP5, MP5K Cocking Handle - Extended
HKP HK Parts
$39.95HK MP5, MP5K Contoured Cocking Handle - Extended Enhanced extended cocking handle for the MP5 style of firearms. Each cocking handle offers twice the grabbing area for charging the firearm and each is made 100% from solid steel billet. Each item also...HKP-17149$39.95 -
On Sale
HK91, G3 Rubberized Mag Pouch - Surplus
Now: $3.71Was: $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: $3.71Was: $9.95 -
HK MP5 Handguard - Wide - M-LOK
HKP HK Parts
$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$49.95