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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AR-15 Ambidextrous Forced Reset Selector (G-LEVER) - Geissele Compatible
Atrius
$269.00AR-15 Ambidextrous Forced Reset Selector (G-LEVER) - Geissele Compatible Atrius Development forced reset selectors for Geissele triggers. Enables the user to select from 3 positions; SAFE, SEMI...HKP-22550$269.00 -
On Sale
HK MP5, SP5 Faux Suppressor - KAC Style - 1/2x28
MFI
Now: $125.06Was: $138.95HK MP5, SP5 KAC Style Faux Suppressor - 1/2x28 The MFI faux KAC-Navy suppressor is designed to thread onto any 1/2x28 barrels and fully enclose the 3-lugs, ensuring an authentic looking fit and...HKP-22363Now: $125.06Was: $138.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - A4 Style
H&K Heckler & Koch
$22.95HK416, MR556, HK417, MR762 - A4 - Handguard Locking Screw Replacement locking screw that secures the A4 handguard to the upper receiver. Compatible With: HK HK416 A4HKP-22304$22.95 -
On Sale
HK MP5, 90 Series Holder Plate for Locking Rollers
MKE
Now: $23.96Was: $29.95MKE Roller Retainer Plate for Rollers This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use and age of the service weapon...HKP-22235Now: $23.96Was: $29.95 -
HK CC9 Magazine Release and Chassis Pin
H&K Heckler & Koch
$5.95Heckler and Koch Magazine Release and Chassis Pin for HK CC9 Made by HK, this authentic pin for the HK CC9 secures magazine release and chassis components within theHKP-22112$5.95 -
Out Of Stock
HK CC9 Backstrap - Standard
H&K Heckler & Koch
$13.95H&K CC9 Standard Backstrap This genuine H&K CC9 backstrap provides the factory grip profile for a custom fit. Compatible With: HK CC9HKP-22108$13.95 -
Picatinny Sight Mount - RMR, Holosun
HKP HK Parts
$97.95HKP HK MP5/K RMR / Holosun Picatinny Sight Mount The HKP HK MP5/K RMR / Holosun Picatinny sight mount offers a secure, low-profile platform for RMR and Holosun optics. Compatible with any firearm...HKP-22068$97.95 -
On Sale
HK UMP, USC Extended Handguard
HKP HK Parts
Now: $159.34Was: $249.95HKP UMP/USC Extended Handguard - Black Cerakote The HK Parts UMP extended handguard is the ultimate choice for your UMP or USC. M-LOK attachment points and a robust picatinny rail on the extended...HKP-21679Now: $159.34Was: $249.95 -
On Sale
Suppressor Cleaner Evolution - 1000ml
SchleTek
Now: $56.00Was: $70.00SchleTek Suppressor Cleaner Evolution 1000ml Keep your suppressors clean and optimally functioning with SchleTek suppressor cleaner.HKP-21726Now: $56.00Was: $70.00 -
On Sale
HK MP5 Bushing Sleeve - Elbow Spring with roller - USED
H&K Heckler & Koch
Now: $2.22Was: $5.95HK MP5 Bushing Sleeve - Elbow Spring with roller - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLYHKP-03330-USEDNow: $2.22Was: $5.95 -
On Sale
HK416, MR556 Battlesight Set - Folding - 45 degree Offset
Troy Industries
Now: $239.36Was: $265.95HK 416 / MR556 - 45⁰ OFFSET BATTLESIGHT SET – HK FRONT & ROUND REAR Durability and dead-on accuracy have made Troy Industries Folding BattleSights the choice of Special Ops and tactical users...HKP-21289-MNow: $239.36Was: $265.95 -
HK G36, SL8 Paddle Magazine Release - Heckler and Koch
H&K Heckler & Koch
$9.95Heckler and Koch Paddle Magazine Release for HK G36 and HK SL8 Compatible With: SL8 G36HKP-02152$9.95