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 G36, SL8 Handguard - Gen 1
H&K Heckler & Koch
$121.95German HK G36 & HK SL8 Black Forearm- 1st Gen This part is the older style 1st gen that has the bipod grove to allow the factory HK bipod to be installed. New HK black in color without a heat shield...HKP-01936$121.95 -
HK USC, USC Bolt Carrier - Semi Auto - 9mm
Michaels Machines
$699.95HK UMP/USC (9mm) Semi Auto Bolt Carrier The semi-auto bolt group is needed for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Specifications:HKP-02283$699.95 -
HK USC Locking Lever Axle - .45 ACP
H&K Heckler & Koch
$29.95HK USC Lower Locking Lever Axle A great item to have on hand as spares. New German HK. Compatible With: All USC lowersHKP-16376$29.95 -
HK UMP Barrel - 9mm - Threaded with 3 Lug
Michaels Machines
$549.95HK UMP 9mm Barrel - Threaded - 3-Lug Specifications: 3Lug Threaded Compatible WiHKP-02278$549.95 -
HK91, G3 Match Trigger Group - Sniper
H&K Heckler & Koch
$749.95HK German SEMI .308 Trigger Group Complete For G3, 91 & PTR Models The HKP match trigger group starts life as a standard 12lb stock trigger pack before being carefully converted by the legendary...HKP-17031$749.95 -
HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH
RCM
$164.95RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH Made to exact HK51K specifications from cold hammer forged steel, this barrel matches the quality of HK German barrels. Ideal for custom builds and...HKP-02392$164.95 -
HK MP5K Receiver Flat - .40 S&W, 10mm
HKP HK Parts
$199.95MP5K-40, MP5K-10 Receiver Flat - USA Receiver Flat for use with a MP5K-40 or MP5K-10mm build. Please note: This is for the flat as picture no weldments are included. ***This US made receiverHKP-18033$199.95 -
On Sale
HK MP5 Trigger Pack - Ambi 0,1 - .40 S&W, 10mm
HKP HK Parts
Now: $207.16Was: $324.95HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever...HKP-17231Now: $207.16Was: $324.95 -
Out Of Stock
HK MP5 Magazine Follower Bolt Catch Screw - Threaded - .40 S&W, 10mm
H&K Heckler & Koch
$34.95Heckler and Koch Threaded Bolt Catch for Magazine Follower for your HK MP5 40,10 This is the small threaded screw that fits into the bolt-hold-open axle and makes contact with the magazine follower...HKP-00454$34.95 -
HK MP5 Roller - Standard 8mm - .40 S&W, 10mm
H&K Heckler & Koch
$20.95HK German MP5 40/10 8mm Roller - Factory New Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note:<HKP-00338$20.95 -
HK MP5 Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
HKP HK Parts
$249.95HKP HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug Newly manufactured US Made MP5 .40 S&W barrel that is 3-lugged and threaded with matching thread protector. This is a barrel offering that is made...HKP-16402$249.95 -
HK MP5 Parts Kit - A2 Buttstock and SEF Lower - 9mm - 100% German
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 FrHKP-00771$2,239.95