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
HK MP5K 9mm 5 Position Retractable Stock - PDWC - Extended Buttpad
HKP HK Parts
$369.95HK MP5K PDW Telescopic - 5 Position Adjustable Stock - Extended Buttpad Finally the most anticipated PDW style stock for the MP5K ever developed. Made in the USA. The stock rails collapse along the top ridge of the grip frame for the lowest profile...HKP-19003$369.95 -
HK MP5 9mm Ambidextrous Trigger Group (0,1,2) Pictogram
H&K Heckler & Koch
$3,299.95HK MP5 9mm (0,1,2) Only Pictogram Black Polymer Trigger Group Rare configuration and hard to find! Last unit we have on hand so get it while you can! Shown as 0,1,3 but the correct 0,1,2 trigger group.HKP-16684$3,299.95 -
Out Of Stock
HK Roller Sear For Burst Trigger Packs
H&K Heckler & Koch
$0.00H&K Roller Sear For Burst Trigger Packs New HK German Roller Sear for SEF & Navy trigger packs. This is the newer style "roller" type not the older friction type of sear. This item is also referred to as the catch with roller but more commonly...HKP-01711$0.00 -
Out Of Stock
HK MP5, HK94, HK53, HK93 Ambidextrous Housing - Push Pin - Unmarked
H&K Heckler & Koch
$0.00H&K (9mm & 5.56/.223) Unmarked Ambidextrous Housing - Push Pin This trigger housing is designed for use with MP5, 93, and 33 ambidextrous trigger packs, making it an ideal choice for those seeking versatility. Manufactured in Germany, this...HKP-02461$0.00 -
Out Of Stock
HK MP5, HK33, HK93 Housing - Ambi - Unmarked - Clipped and Pinned - 9mm, 5.56 / .223
H&K Heckler & Koch
$0.00H&K MP5 & 93/33 (9mm & 5.56/.223) Unmarked Ambidextrous Housing - Clipped & Pinned This ambidextrous lower housing is designed specifically for use with MP5, HK33, and HK93 trigger packs. Featuring a clean, unmarked exterior, it offers a...HKP-15303$0.00 -
Out Of Stock
HK MP5 F 4 Position A3 Retractable Stock
H&K Heckler & Koch
$0.00HK German MP5 F 4 POSITION A3 Retractable Stock With BHO Cutout This is known as the universal stock as it fits all 9mm, 40 & 10mm firearms. A Perfect Solution If You Need A Stock To Fit All of The MP5 Variants In 9mm, 40 & 10mm As Well As Clones...HKP-00456$0.00 -
Out Of Stock
HK MP5 Barrel - 9mm - 8.85" - Threaded 1/2x32 with 3 Lug
HKP HK Parts
$139.95HK Parts 9mm Barrel threaded at 1/2x32 for your HK MP5made in the USA Made in the USA This is the highest quality, best valued US-made MP5-N barrel available. This high-quality barrel is processed using the highly desirable Nitride process This is...HKP-18022$139.95 -
Out Of Stock
HK MP5 Parts Kit - A2 Stock and 4 Position Lower - 9mm
H&K Heckler & Koch
$0.00HK German MP5 9mm Used Parts Kit Complete - Less Receiver. All MP5 Kits: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Fore arm - Black Bolt Group - MP5 Full Auto Push Pins - 1 Large and 2 Small 30 Round Curved Magazine -...HKP-00776$0.00 -
Out Of Stock
HK MP5 Trigger Housing - Navy 0,1,3,F - Semi Only - Clipped and Pinned - 9mm
H&K Heckler & Koch
$0.00H&K MP5 9mm Semi & Semi Only Navy Style Trigger Housing - Clipped & Pinned Enhance your firearm with this HK trigger housing, designed to replicate the look and feel of a full-auto 3 position trigger group while operating in a semi-auto...HKP-00155$0.00 -
Out Of Stock
HK MP5, SP5, PDW Retractable Stock- 5 Position
HKP HK Parts
$349.95HKP MP5, SP5 - PDW 5 Position Telescopic Stock Finally the most anticipated PDW style stock for the MP5 ever developed. Made in the USA. The stock rails collapse along the top ridge of the grip frame for the lowest profile stock ever produced for the...HKP-17958$349.95 -
Out Of Stock
HK MP5, SP5 Family Operator's Manual
H&K Heckler & Koch
$0.00HK MP5 Family Operator's Manual A factory HK OEM printed manual for the operation, use, care & understanding of the MP5, HK94 family of firearms. A must have for all owners of the MP5 series of firearms. Each manual is blue in color and covers a wide...HKP-00023$0.00 -
HK MP5 Trigger Group - 3 Position (0,1,Full) - Navy
H&K Heckler & Koch
$2,499.95HK MP5 9mm 3 Position Navy (0,1,Full) Trigger Group Complete New Factory German manufacture brand new 3 position Navy ambidextrous F/A trigger group. Safe, semi, full controls. Each unit comes complete as shown as the trigger group comes from the factory...HKP-00160$2,499.95