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 SEF Enhanced Ambi Selector Set - Navy Style
HKP HK Parts
$76.95Ambidextrous Selector Lever Set For SEF Navy Style Polymer Grip Frames Features: Made in the USA Billet machined enhanced left & right side selector lever set Latest HK style titanium detent, enhanced spring for positive movement between...HKP-18065$76.95 -
Out Of Stock
HK Style 9mm 3 Lug Suppressor Adapter - Threaded 1/2x28 RH
Kaw Valley Precision
$36.95Kaw Valley Precision 9mm 3-Lug Suppressor Adapter - Threaded 1/2x28 RH The KVP 3-Lug Adapters are precision engineered to replicate the popular HK pattern 3-Lug interface. Crafted with meticulous attention to concentricity, these adapters ensure...HKP-19987$36.95 -
Out Of Stock
HK MP5, MP5K Drum Magazine - 50 Round - 9mm
F5 MFG
$199.00F5 MFG 50 Round HK MP5 and HK MP5K 9mm Drum Magazine HK MP5 and HK MP5K 9mm - 50 Round Drum New 3rd generation redesigned version. Now offered at an even lower price! You asked for it and the long-awaited and highly anticipated MP5 50 Round Drum Magazine...HKP-16537-M$199.00 -
HK MP5 .22 LR Folding Stock
B&T Brugger & Thomet
$249.95B&T Folding Stock for MP5 .22 LR Swiss made B&T folding stock for the MP5 22 LR. This is a military grade stock section as supplied by B&T to HK Germany. B&T Switzerland has supplied these to law enforcement and military units around the...HKP-20166$249.95 -
HK USP, Mark 23 Recoil Assemblies Snap Ring
H&K Heckler & Koch
$5.95H&K HK USP/Mark 23 Recoil Assemblies Snap Ring The snap ring secures the spring onto the recoil buffer spring assembly. This part can come loose and become lost or easily worn. Once you remove them, HK suggests replacing them with a new snap ring...HKP-01258$5.95 -
Out Of Stock
HK MP5K, SP89, SP5K Tri-Rail Handguard - 9mm
B&T Brugger & Thomet
$265.00B&T Brugger and Thomet Tri-Rail Handguard for HK MP5K, HK SP89 and HK SP5K 9mm B&T Tri-Rail handguard for HK MP5K platforms. Specifications: Color: Black Height max: 48.4 mm Length max: 86 mm Length of right rail: 82 mm Length of left...HKP-16889$265.00 -
HK Roller Type Trip Lever
H&K Heckler & Koch
$29.95H&K Roller Type Trip Lever This is a genuine German Heckler & Koch part. This is the newer style trip lever for use with a roller sear catch, not the older friction type. Please Note: May or may not be marked with the X or XX...HKP-02466$29.95 -
HK CC9 Magazine - Extended Pinky Rest - 15 Round
HKP HK Parts
$79.95HKP CC9 15 Round 9mm Complete Magazine w/ Extended Pinky Rest Factory German 12‑round CC9 magazine fitted with an HK Parts extended pinky rest. Available exclusively at HK Parts. Features: Drop‑in, fully assembled and ready to use Improves grip...HKP-22369-M$79.95 -
HK USP, USP Compact Trigger Spring
H&K Heckler & Koch
$5.95H&K HK USP/USPC Trigger Spring Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACPHKP-01252$5.95 -
Out Of Stock
HK MP5, MP5K Paddle Magazine Release - Anti-Rattle Roller Tipped - 9mm
HKP HK Parts
$29.47HKP HK Parts 9mm Anti-Rattle Roller Tipped Paddle Magazine Release for HK MP5 and MP5K Latest generation paddle mag release for all 9mm MP5, MP5K style builds. Made to the latest German specs, materials, and design. Compatible...HKP-17570$29.47 -
HK VP9, VP9SK, HK VP40 Locking Block Pin
H&K Heckler & Koch
$10.95H&K HK VP9/VP9SK, HK VP40 Spring Pin, Dowel Pin For Locking Block HK German manufacture. A special spring pin that has an internal spring for support. A must have item as this roll pin can become damaged with install and removal. Compatible...HKP-16790$10.95 -
HK VP9 Optic Plate #7 - Holosun 509T - Red Dot Pistol Mount
HKP HK Parts
$49.95HK VP9, VP9L Optics Ready #7 - Holosun 509T - Optic Mount - Steel The finest all steel mounting solution for your HK VP9, VP9L OR model.New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of ordnance grade steel,...HKP-19972$49.95