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 SP5K 9mm Housing - SEF, Navy Style - Clipped and Pinned
H&K Heckler & Koch
$199.95HK German SP5K Spec - Navy Style - SEF C/P Housing HK SP5K Spec ONLY for the newly released HK SP5K spec. Made is Germany and machined to fit the HK SP5K spec only. Compatible With: HK SP5K 9HKP-17945$199.95 -
On Sale
HK MP5 Flash Hider - .22LR
HKP HK Parts
Now: $39.97Was: $49.95HKP HK MP5 .22LR Flash Hider Transform your HK MP5 .22 pistol by adding a direct thread-on flash hider that perfectly replicates the iconic look of the MP5 9mm 3-lug flash hider. Internal O-ring to...HKP-21648Now: $39.97Was: $49.95 -
HK33 Slimline Handguard
H&K Heckler & Koch
$59.95H&K HK HK33 Slimline Forearm Used German military surplus black cerakote slimline forearm cut down to fit the HK33. These are rare items only offered here at HK Parts. Each item is in good to...HKP-20273-M$59.95 -
HK MP5, G3, HK93 Grip Wrap - Rubber - Navy Style Lower
Talon Grip
$19.99Talon Grip HK Navy Style Rubber Grip Wrap - Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you...HKP-20229$19.99 -
HK417, MR762, G28 Buffer Tube Castle Nut - Extended
H&K Heckler & Koch
$85.95Heckler and Koch Buffer Tube Castle Nut for HK G28, HK417 and HK MR762 New HK German G28 castle nut for the HK MR762, HK417, and G28 models. Black in color. This is the proper part for use with the...HKP-16763$85.95 -
On Sale
HK USP Holster - Infidel Max IWB - RH
Comp-Tac
Now: $52.00Was: $64.99Comp-Tac HK USP Infidel Max IWB RH Holster The Infidel Max Holster is an all-Kydex inside the Waistband holster with cant adjustment holes to allow the user to change from a reverse cant, speed cant...HKP-18248Now: $52.00Was: $64.99 -
HK416, MR556 Storage Cap Pin for Pistol Grips
H&K Heckler & Koch
$4.95Heckler and Koch HK MR556/416 Battle Grip Storage Cap PinHKP-16861$4.95 -
HK416A5, MR556 Selector Lever Set, Complete - Ambi - RAL8000
H&K Heckler & Koch
$189.95Heckler and Koch Ambidextrous Selector Lever Set Complete for HK416A5 SEMI and HK MR556 - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the HK MR556 to thHKP-17603$189.95 -
HK G36, SL8 Bipod
H&K Heckler & Koch
$449.95New HK G36 & HK SL8 Factory Bipod Heckler & Koch German made. Manufactured with steel-reinforced HK composites. Compatible With: HK G36HKP-00270$449.95 -
HK Universal Harris Bipod Adapter
H&K Heckler & Koch
$209.95HK Factory Harris Bipod Adapter - Low Profile This adapter is to attach the Harris bipod to any Picatinny rail. It is compatible with all Picatinny railed forearms or applications. A new HK German...HKP-01852$209.95 -
HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - H&K
H&K Heckler & Koch
$99.95HK Factory German MP5K, SP-89, & SP5K End Cap With Sling Swivel Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer. Compatible With: MP5KHKP-00394$99.95 -
On Sale
HK MP5, SP5 3 Lug Adapter - Threaded 1/2x32
HKP HK Parts
Now: $22.46Was: $49.95HKP 3-Lug Adapter - Threaded 1/2x32 The HK 3-Lug Adapter, internally threaded with 1/2x32 threads, can easily attach to any existing 1/2x32 threaded parts. This is the finest machined adapter on the...HKP-00107Now: $22.46Was: $49.95