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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Out Of Stock
HK MP5, MP5K 3-Lug Blank Firing Adapter
H&K Heckler & Koch
$169.95H&K MP5/MP5K 3-Lug Blank Firing Adapter This part attaches to the end of the 3-lug barrel tip and will allow the use of 9mm blanks for training. A brand new HK German manufactured part...HKP-01990$169.95 -
HK VP9, VP40 Hybrid Trigger - Adjustable
Grayguns
$125.00HK VP9, VP40 Adjustable Hybrid Trigger The Adjustable Hybrid Trigger for the HK VP9 and VP40 Series fits the standard variants. The trigger features an over-travel adjustment while providing a...HKP-22343$125.00 -
Century Arms AP51 Fixed Stock - Cerakoted - Enhanced Buffer
HKP HK Parts / Heckler & Koch
$199.95H&K/HKP Century AP51 Fixed Stock - Cerakoted - Enhanced Buffer Each stock starts life as an excellent condition surplus stock. The stocks are then refinished and the recoil rod modified to work...HKP-22183-M$199.95 -
HK VP40 Conversion Barrel - .40 S&W to 9mm - Threaded - 1/2x28
RCM
$214.95RCM HK VP40 to 9mm Conversion Barrel - Threaded - 1/2x28HKP-21676$214.95 -
Out Of Stock
HK MP5, SP5, HK94 A3 Retractable Stock - Factory - Like New
H&K Heckler & Koch
$799.95H&K Heckler and Koch Factory A3 Like New Buttstock for HK MP5 and HK94 The original Navy-style German HK MP5 A3 stock is a rare find, as it's no longer in production and has been replaced by the MP5...HKP-21644$799.95 -
On Sale
HK416, MR556 Extractor Spring Buffer
HKP HK Parts
Now: $3.44Was: $5.39HKP HK MR556/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised...HKP-21604Now: $3.44Was: $5.39 -
HK MP5, MP5K, SP5, SP5K Magazine - 10 Round - RAL8000
H&K Heckler & Koch
$97.95H&K MP5/MP5K/SP5K 10 Round Magazine - RAL 8K Heckler & Koch factory magazine. We now take this factory magazine and cerakote it with the ultra desirable RAL 8000 color for those looking to customize...HKP-21441$97.95 -
On Sale
HK MP5K, SP5K Binary Trigger Group - SEF Ambi - BFSIII - 9mm - Contoured
FA Franklin Armory
$956.22 - $1,549.95Franklin Armory HK MP5K - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured In position 3 it will fire 1 round on pull and 1 round on release. With a 4.5 lb trigger pull, making this the fastest...HKP-20005-M$956.22 - $1,549.95 -
HK USP Grip Wrap - Granulate - .45 ACP
Talon Grip
$19.99TALON Grip - USP Full Size .45 - Granulate Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you...HKP-20280$19.99 -
HK VP9, P30 Magazine - 27 Round - Red - 9mm
HKP HK Parts / Heckler & Koch
$99.95Heckler and Koch and HK PARTS 27 Round Magazine Complete with Red Extension for 9mm HK VP9 and HK P30 HK Parts +10 alloy magazine extensiHKP-19840$99.95 -
On Sale
HK VP9, VP40 Sight Tool - Range Master - Universal
HKP HK Parts
Now: $159.34Was: $249.95MGW Armory Precision Tooling Range Master a universal sight tool for HK VP9 HK VP40 Models HK sight tool used for installing & removing front & rear sights on your HK pistol. This is the finest...HKP-18679Now: $159.34Was: $249.95 -
HK VP9, VP40 Disassembly Lever Spring
H&K Heckler & Koch
$5.95Catch Spring For Disassembly Lever HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 FHKP-16786$5.95