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
HK11E Bolt Group - Complete
H&K Heckler & Koch
$0.00HK11E Bolt Group Complete This is the complete bolt group for an HK German HK11E. Now out of production and rare. Includes the following: HK11E bolt carrier complete HK11E bolt head complete HK11E...HKP-00585$0.00 -
Out Of Stock
HK21E, HK23E Brass Catcher - Factory
H&K Heckler & Koch
$0.00HK21E & HK23E Factory Brass Catcher- New HK German HK21E and HK23E brass catcher with quick release system for taking the unit on and off in a snap. Compatible With: HK23EHKP-00814$0.00 -
Out Of Stock
HK21 Firing Pin
H&K Heckler & Koch
$0.00HK German 21 Firing Pin - Old Stock Compatible With: HK21HKP-00546$0.00 -
Out Of Stock
HK21E, HK23E Barrel Case - Swivel Sling - 18 inch Barrels
H&K Heckler & Koch
$0.00All steel heavy duty carrying case to carry your Heckler and Koch HK21 and HK23 Barrels. Features: Heavy Duty Steel 18" barrel carrying case for 17.7" barrelsHKP-00586$0.00 -
Out Of Stock
HK23E Feed Mechanism - Complete - 5.56 / .223
Michaels Machines
$3,999.95MM HK 23E (5.56/.223) Complete Feed Mechanism New US manufactured HK23E feed mechanism complete with top plate and push pin. The complete unit a great spare to have on hand. Compatible With:<HKP-17578$3,999.95 -
Out Of Stock
HK21E, HK23E Latest Production Bipod
H&K Heckler & Koch
$0.00New HK German 21/23E Latest Production Bipod No longer in production or available. Compatible With: Older HK21's MM23HKP-00563$0.00 -
Out Of Stock
HK11E Magazine Exchange Kit
H&K Heckler & Koch
$0.00HK 11E Magazine Exchange Kit- AS SHOWN HK21E to HK11E conversion kit to convert an HK21E to an HK11E to accept HK91/G3 style magazines. Converts from belt fed to a magazine fed on one platform of...HKP-02112$0.00 -
Out Of Stock
HK11E Bolt Carrier
H&K Heckler & Koch
$899.95HK 11E bolt carrier HK21E to HK11E bolt carrier used to convert an HK21E to an HK11E to accept HK91/G3 style magazines. This is the HK11E bolt carrier only. Includes: HK 11E Bolt CarrierHKP-16492$899.95 -
HK21E Feed Mechanism Roller Axle
H&K Heckler & Koch
$64.95HK 21E & 23E Series Feed Mechanism Roller AxleHKP-02062$64.95 -
Out Of Stock
HK PSG1 Trigger Pack Assembly - German
H&K Heckler & Koch
$0.00H&K PSG1 (7.62x51/.308) Trigger Pack Assembly Experience the precision of the factory Heckler and Koch PSG1 trigger pack assembly. This genuine HK PSG-1 trigger pack features a remarkable 3lb pull...HKP-00907$0.00 -
Out Of Stock
HK PSG1, MSG90 Selector Lever
H&K Heckler & Koch
$0.00HK German PSG1 Selector Lever This is a must-have item to use on the PSG1/MSG90 trigger packs. This only fits metal grip frames. Compatible With: PSG1/MSG90 trigger packsHKP-00961$0.00 -
Out Of Stock
HK21E, HK23E Forward Assist
H&K Heckler & Koch
$0.00HK21E & HK23E Forward Assist Compatible With: HK 21 HK 21E HK 23E HK 11 HK 13HKP-00247$0.00