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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HK416, MR556, HK417, MR762 Disconnector Spring - Short
H&K Heckler & Koch
$6.99Heckler and Koch HK416, MR556, HK417, MR762 Disconnector Spring - Short This is the shorter spring of the 2 found in the trigger assembly. Compatible With: HK416, MR556HKP-02675$6.99 -
HK G36, SL8 Firing Pin Retaining Pin, Complete
H&K Heckler & Koch
$11.95Retaining Pin For Firing Pin Complete With O-Ring Compatible With: HK G36 HK SL8HKP-14050$11.95 -
HK UMP, USC Bolt Catch Pin
H&K Heckler & Koch
$5.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch PinHKP-16517$5.95 -
Out Of Stock
HK23E Bolt Carrier
H&K Heckler & Koch
$799.95New HK German 23E .223 / 5.56 Bolt Carrier Date coded and marked HK23-E. These are the last HK23E carriers that HK Germany has left. We are told that once these are gone, there will be no more. They...HKP-00330$799.95 -
HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Jungle Green
H&K Heckler & Koch
$122.95Surplus - Fixed Stock - Jungle Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but...HKP-18887$122.95 -
HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs
MKE
$8.95MKE AP5, MP5, 90 Series Friction Sear for SEF and Navy Trigger Packs Steel friction sear manufactured in Turkey for HK 90 Series trigger packs. Designed for use in SEF and Navy-style configurations,...HKP-22521$8.95 -
Out Of Stock
HK MP5 Magazine Replacement Parts Kit - 30 Round - 9mm
MKE
$23.95MKE HK MP5 9mm 30 Round Magazine Replacement Parts Kit Replacement magazine parts kit for HK MP5 9mm firearms. Made in Turkey and designed to match factory MP5 specifications. Includes: 30 roHKP-99342$23.95 -
Out Of Stock
B&T Official PVC Patch White
B&T Brugger & Thomet
$5.00B&T Official PVC Patch White - 2.5"HKP-21735$5.00 -
Out Of Stock
HK416 Barrel Multi Tool
Nefarious Arms
$124.95Nefarious Arms HK 416 Barrel Installation and Multi Tool HK416 multitool patternHKP-21487$124.95 -
Out Of Stock
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
Sig P320 +3 Magazine Extension
Tactical Precision MFG
Now: $14.96Was: $44.95TPM Sig P320 +3 Magazine Extension This extension is made from machined 6061 aluminum. This magazine extension will increase the capacity, reload speed, mag drops, and overall functionality of your...HKP-21133-MNow: $14.96Was: $44.95 -
Streamlight Universal TLR-7 X Multi-Fuel Tactical Weapon Light
Streamlight
$199.95Streamlight Universal TLR-7 X Multi-Fuel Tactical Weapon Light Maximize your weapons platform with interchangeable rear paddle switches that allow you to customize your TLR-7 X to your shooting style...HKP-21107$199.95