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
-
HK CC9 Magazine +5 Extension Kit - 9mm
HKP HK Parts
$59.95HKP HK CC9 +5 Magazine Extension US-made +5 magazine extension for the HK CC9. This low-profile base pad increases a standard 15-round CC9 magazine to 20 rounds of 9mm. Machined from aircraft-grade...HKP-22467-M$59.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip - Tool Included
H&K Heckler & Koch
$159.95HK Heckler and Koch's Pistol Grip with tool - Black Factory German pistol grip in black.HKP-22208$159.95 -
HK21 Ammunition Belt with Starter Tab - DM1 - 200 Round
H&K Heckler & Koch
$114.95Heckler and Koch DM1 200 Round Belt with Starter Tab - for HK21 7.62x51/.308 Custom 200 round belt for HK21 and MG3 belt-fed rifles because 50 rounds just aren't enough! Compatible With: HK21HKP-21925$114.95 -
On Sale
HK91, G3, PTR Bolt Head Complete - Used
H&K Heckler & Koch
Now: $59.21Was: $99.95German HK G3 & HK 91 & PTR Bolt Head Complete - Used German Date Coded Made in Germany. Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK...HKP-21902Now: $59.21Was: $99.95 -
HK P30L MOD 1 Compensator - Threaded Barrel
HKP HK Parts
$179.95HKP HK P30L MOD 1 Compensator - Threaded Barrel The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil,...HKP-21871$179.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Flash Hider - Threaded 15x1 RH - USED - BLEMISHED
H&K Heckler & Koch
Now: $5.96Was: $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...HKP-00717-BNow: $5.96Was: $15.95 -
Out Of Stock
HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 11" A3 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or...HKP-21619$594.95 -
HK USC Stock Block to Picatinny Rail
HKP HK Parts
$149.95HKP HK USC Stock Block to Picatinny Rail The HKP USC stock block with picatinny rail offers superior adjustability for the stock of your choice. Each stock block is crafted from billet aluminum,...HKP-21594-M$149.95 -
Blast Can - Threaded 1/2x28 - 9mm, 5.56 / .223
MI Midwest Industries
$38.95MI Blast Can 1/2x28 Thread (5.56/9mm) Specifications: Directs muzzle blast forward on short barrel rifles and pHKP-21535$38.95 -
On Sale
Ruger Precision Rifle Trigger Shoe
Tactical Precision MFG
Now: $14.96Was: $37.99TPM Ruger Precision Rifle Trigger Shoe This trigger shoe is a great addition to your RPR or any rifle with a blade safety type trigger, the shoe covers the trigger shoe deleting the blade safety...HKP-20903Now: $14.96Was: $37.99 -
On Sale
HK USC , UMP Top Rail
Other
Now: $74.96Was: $149.95Top Rail - HK USC / UMP TommyBuilt anodized aluminum high rise top rail. Includes mounting hardware. Compatible With: HK UMP <HKP-20744Now: $74.96Was: $149.95 -
B&T Unigrip - Quick Detach - Aluminum
B&T Brugger & Thomet
$150.00B&T Quick Detach Aluminum Unigrip - Black This simple fore grip is designed to be mounted on the NAR/Picatinny rail of the gun. The grip is hollow and can be used as a storage compartment after...HKP-19473$150.00