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
HK21E Cylinder Head Screw - Belt Feed Mechanism - RARE
H&K Heckler & Koch
$18.95HK21E Cylinder Head Screw - Belt Feed Mechanism - RARE Replacement cylinder head screw for the HK21E belt feed mechanism, manufactured to original specifications. Ensures proper fit, secure...HKP-99412$18.95 -
HK MR762 A4 Barrel - 16.5" - Proofed
H&K Heckler & Koch
$459.95HK MR762 A4 Barrel - 16.5" - Proofed Factory proofed HK MR762 A4 16.5" barrel with standard 5/8x24 RH thread pitch. Compatible With: HK MR762 A4HKP-22453$459.95 -
On Sale
HK MP5K End Cap with Swivel Attachment
MKE
Now: $62.96Was: $69.95MKE End Cap with Swivel Attachment for HK MP5K Durable factory-style end cap designed for MP5K platforms. Provides a secure sling mounting point for MP5K pistols. <HKP-22373Now: $62.96Was: $69.95 -
Out Of Stock
HK CC9 Mod 1 Compensator Rail Set
HKP HK Parts
$28.95HKP HK Parts HK CC9 Rail and Plate Insert - Replacement MOD 1 Insert Kit Replacement Picatinny rail and smooth plate inserts with hardware for the MOD 1 compensator. Compatible With:HKP-22372$28.95 -
On Sale
HK MP5K Cocking Tube Support - Complete
MKE
Now: $43.97Was: $54.95MKE HK MP5K Cocking Tube Support Complete Complete assembly for proper alignment and reliable operation. Compatible With: Century AP5-P, AP5-M HHKP-22226Now: $43.97Was: $54.95 -
HK416 A5 Front Sight Adapter
H&K Heckler & Koch
$97.95H&K HK416 A5 Front Sight Adapter Designed for secure and precise installation of factory-style front sights. Compatible With: HK 416HKP-22204$97.95 -
Out Of Stock
HK416 Upper Receiver Kit - 10.4" - Date Coded - OTB - USED
H&K Heckler & Koch
$3,789.95H&K 416 10.4" Date Coded OTB Upper Parts Kit - USED Genuine HK 416 10.4″ date coded used upper parts kit with a factory German 10.4″ barrel with the new Over The Beach (OTB) features (vented gas...HKP-22193-M$3,789.95 -
On Sale
HK VP9, VP40 Competition Magwell Extension - Purple - BLEMISHED
HKP HK Parts
Now: $52.46Was: $129.95HKP HK VP9, VP40 Competition Magwell Extension - Purple - BLEMISHED Our 2-piece, steel insert competition VP9/VP40 extended flared magwell is CNC made from heat treated 4140 billet nitrided steel...HKP-21079-PU-BNow: $52.46Was: $129.95 -
HK CC9 Firing Pin Safety
H&K Heckler & Koch
$18.95H&K CC9 Firing Pin Safety Made by H&K, the firing pin safety for the CC9 blocks firing pin movement until the trigger is pulled.HKP-22133$18.95 -
HK VP9, VP40 Slide Release Lever - Anti-Skid - Right
H&K Heckler & Koch
$67.95H&K VP Anti-Skid Slide Release Lever - Right Right side extended slide release lever. Can be combined with 260431, 50254706, 50239395.HKP-22012$67.95 -
HK P30S, P30SK Safety Lever Detent Pin
H&K Heckler & Koch
$19.95H&K P30S/P30SK Safety Lever Detent Pin Detent pin for the manual safety mechanism on P30S and P30SK models. Compatible With:HKP-21988$19.95 -
On Sale
CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - USED
Simunition
Now: $202.46Was: $319.95CQT FX Simunition Conversion Kit for MP5 - 9mm - Blue - USED SHADES OF BLUE MAY VARYHKP-99054Now: $202.46Was: $319.95