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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HK MP5 Barrel - .40 S&W - Threaded with 3 Lug - Factory
H&K Heckler & Koch
$1,495.00H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug New MP5 .40 S&W barrel. Factory-installed sight tower with sight/sling eyelets and factory finish. Specifications: Threaded 3-Lug Compatible With: HK MP5 .40 S&W Rare & hard to find...HKP-19349$1,495.00 -
Out Of Stock
HK417A2, MR762 Handguard - H-Key Slimline
H&K Heckler & Koch
$0.00H&K HK MR762/417 A2 H-Key Slimline Handguard - Black Compatible With: All 16.5" & 20" models HK MR762 HK 417/417 A2HKP-19006$0.00 -
Out Of Stock
HK417, MR762 Handguard - Extended - Picatinny - Flip Up Front
H&K Heckler & Koch
$0.00HK MR762, HK 417 Extended Quad Rail With Flip Up Front Sight Each unit comes with both of the mounting screws, a flip up front sight assembly for emergency use as a backup sight. HK's extended 13" rail allows for longer sight radius and more rail space...HKP-17331$0.00 -
Out Of Stock
HK417, MR762, G28 Bolt Head Complete
H&K Heckler & Koch
$439.95H&K HK MR762/417/G28 Bolt Head Complete New HK German manufacture Compatible With: HK MR762 HK MR308 HK G28HKP-18143$439.95 -
Out Of Stock
HK416 Telescopic Stock - .22LR PDWC
HKP HK Parts
$0.00HK 416C Style PDW Stock - HK, Walther .22 LR The long anticipated PDW style AR15/M4 Stock is now available for the HK 416 .22 models. Made in the USA. The best PDW stock design available in the smallest package. Ergonomic, easy to use and designed...HKP-17840$0.00 -
$279.95 -
On Sale
HK 300 Magazine Spring Follower
H&K Heckler & Koch
Now: $19.95Was: $28.95HK 300 Magazine Spring Follower No longer in production. Factory original German manufactured replacement part. This follower will only fit HK300 .22 WMR rifles.HKP-02077Now: $19.95Was: $28.95 -
HK USP Full Size Magazine Locking Plate - .40 S&W - 10 Round
H&K Heckler & Koch
$9.95H&K 10 Round USP 40 Full Size Magazine Locking Plate Compatible With: USP .40 10 RoundHKP-02361$9.95 -
Out Of Stock
$0.00 -
HK P7 PSP Front Sight 5.9mm
H&K Heckler & Koch
$23.95HK P7 PSP Front Sight 5.9mm Compatible With: PSPHKP-01342$23.95 -
HK P7M10 Magazine Follower Insert - .40 S&W
H&K Heckler & Koch
$34.95HK P7M10 .40 S&W Magazine Follower InsertHKP-01364$34.95 -
Out Of Stock
HK P7 Series Firing Pin
H&K Heckler & Koch
$0.00H&K HK P7 Series Firing Pin Compatible With: HK P7 PSP HK P7 M8 HK P7 M10 HK P7 M13HKP-00796$0.00