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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HK91, G3 A3 Retractable Buttstock Buttpad
H&K Heckler & Koch
$24.95HK G3 & HK 91 A3 Retractable Stock Rubber Buttpad - German This item is a great spare itemsto have on hand as the factory buttpads found on used or surplus stocks are often worn or damaged. Made in...HKP-16853$24.95 -
HK MP5 Trigger Housing - 3 Position Burst 0,1,2 Pictogram - Push Pin - .40 S&W, 10mm
H&K Heckler & Koch
$199.95H&K MP5 40/10 3 Position (0,1,2 Pictogram) Burst Trigger Housing - Push Pin This factory push pin grip frame features 3 position (0,1,2) pictogram markings, designed for the MP5 40/10 series. It is a...HKP-16469$199.95 -
On Sale
HK MP5 Extractor - .40 S&W, 10mm
RCM
Now: $24.47Was: $34.95RCM US Made Extractor for HK MP5 .40 S&W and 10mm This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector...HKP-01969Now: $24.47Was: $34.95 -
HK MP5 Trigger Group, Complete - SEF Semi Auto - Clipped and Pinned - .40 S&W, 10mm
H&K Heckler & Koch
$449.95HK German MP5 40, MP5 10mm SEF Clipped & Pinned Semi-Auto Trigger Group - Complete Ready to install on your HK clone or a custom build.HKP-00447$449.95 -
Out Of Stock
HK SP5K Bolt Carrier - Semi Auto - 9mm
H&K Heckler & Koch
$449.95Heckler and Koch HK SP5K 9mm Semi-Auto Bolt Carrier German-made HK SP5K bolt carrier built to the factory semi-auto SP5K specification. This carrier features the correct SP5K closed-front design and...HKP-18207$449.95 -
HK33, HK53, HK93, HK91, HK G3 Flash Hider - Threaded 15x1 - Used
H&K Heckler & Koch
$15.95Heckler and Koch's Flash Hider - 15x1 RH - Used Used / surplus HK German flash hider threaded 15x1 RH. Please inspect pictures to ascertain the average condition of these flash hiders. Compatible...HKP-00717$15.95 -
HK416, MR556 Carbine Stock - MOE - Commercial Spec
Magpul
$54.95Magpul MOE (Magpul Original Equipment) Commercial-Spec Model for AR15/M4 Carbines Made in the USA, the MOE stock Commercial-Spec Model is a drop-in replacement buttstock for AR15/M4 carbines using...HKP-10629$54.95 -
On Sale
CZ Scorpion Stock or Brace Adapter - EVO Ace
HKP HK Parts
Now: $13.46Was: $39.95CZ Scorpion EVO Ace Brace/Stock Adapter The CZ Scorpion EVO ACE Stock Adapter allows you to upgrade your CZ Scorpion with any ACE Folding Stock/Brace or ACE Stock/Brace Accessories. Solid billet...HKP-18523Now: $13.46Was: $39.95 -
On Sale
AR-15 Commercial Buffer Tube Kit
HKP HK Parts
Now: $20.96Was: $47.95AR-15 Commercial Buffer Tube Kit Compatible With: All AR-15 style platforms Not correct length for HK rifles IncludesHKP-02736Now: $20.96Was: $47.95 -
Out Of Stock
HK33, HK93 Buttstock - A2 - Black
$74.95Malaysian Contract Black A2 Stock for HK33, HK93 Malaysian contract black A2 fixed stock for HK33 or HK93 pattern rifles. Ideal as a correct-style replacement stock or to give your 5.56 roller-lock...HKP-22428$74.95 -
On Sale
HK MP5, HK90 Series Hammer Strut - USED
H&K Heckler & Koch
Now: $3.91Was: $9.95HK MP5, G3, 91, PTR, 93, 33, HK94 Hammer Strut - USED SOLD INDIVIDUALLYHKP-15445-USEDNow: $3.91Was: $9.95 -
HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip
HKP HK Parts
$189.95HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer HK91 or G3 trigger group a robust metal housing. Simply use your existing...HKP-22322$189.95