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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
HK P30SK Holster - Compensator
Odin Holsters
Now: $37.46Was: $79.95Odin Holsters HK P30SK Comp Weight™ Compensator Holster The P30SK Comp Weight™ Compensator holster is an outside the waistband that allows the HK Parts Comp Weight™ to be installed as well. For a right-hand shooter with or without out...HKP-18842-MNow: $37.46Was: $79.95 -
HK416, HK417, MR556, MR762 Pin Look Index
H&K Heckler & Koch
$6.95H&K HK 417/MR556/416/MR776 Pin Look Index Compatible With: HK MR556 HK 417 HK MR556HKP-02639$6.95 -
HK416 A3 Handguard - Flip Up Sight - 11" - Extended
H&K Heckler & Koch
$799.95Heckler and Koch Extended Forearm with Integrated Flip Up Front Sight for HK 416 A3 HK designed and manufactured in Germany 11" HK416 A5, MR556 extended quad rail. This drop-in unit offers 2 full inches in extra length. Not the standard 9" rail that...HKP-17377$799.95 -
HK G36K Parts Kit - Buttstock Hinge Section
H&K Heckler & Koch
$3,395.95G36K Parts Kit Complete With Stock Hinge Section Factory German HK G36K parts kit with the rare 3" + stock hinge section. NOT compatible with semi-auto receivers like the S5 Tactical SA receiver without modifying the bolt. For authentic,...HKP-00269$3,395.95 -
HK416, MR556, G36 Barrel Chamber Cleaning Brush
HKP HK Parts
$24.95HK G36 & HK SL8 German Chamber Cleaning Brush (Cleans INSIDE Chamber) More details...HKP-00803$24.95 -
$5.95 -
Harris Bipod Adapter - Long - Picatinny
HKP HK Parts
$34.95Harris Bipod Adapter This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-style bipod. This will fit any Picatinny spec rail or rail system. Made in the US out of aircraft-grade aluminum and steel.HKP-00909$34.95 -
HK MP5, HK94 Cocking Tube - LH
HKP HK Parts
$119.95HKP MP5, HK94 Cocking Tube - For Lefties This is the one and only left handed cocking tube for the MP5/HK94 ever made and it happens to be a US manufactured part. Features include enlarged charging handle clamping pin access hole as found on the latest...HKP-17380$119.95 -
Out Of Stock
HK VP9 Match Firing Pin - Complete
H&K Heckler & Koch
$69.95Heckler and Koch Complete Firing Pin for your VP9 Match Complete firing pin assembly including firing pin, sleeve, spring, and shell spring washers. Compatible With: HK VP9 Match HK VP9 HK HK VP9L HK VP9SKHKP-22320$69.95 -
HK45, USP Magazine Spring - Extended
HKP HK Parts
$11.95HK45/USP Extended Magazine Spring .45 ACP Replacement spring for +7 and +10 HK Parts magazine extensions. Compatible With: HK45/HK45 Compact HK USPHKP-22299$11.95 -
HK416 A4, MR556 A5 Barrel Nut
H&K Heckler & Koch
$60.95H&K HK MR556 A4/HK 416 A5 Barrel Nut This precision-machined steel barrel nut is designed specifically for H&K’s MR556 A4 and HK416 A5 rifles. It secures the barrel and supports the proprietary HK free-floating handguard system, offering...HKP-21938$60.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Flash Hider - Threaded 15x1 RH - USED - BLEMISHED
H&K Heckler & Koch
Now: $7.95Was: $15.95Heckler and Koch Flash Hider for (7.62/.308) & (5.56/.223) - 15x1 RH - USED - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Used surplus HK German...HKP-00717-BNow: $7.95Was: $15.95