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
HK53 A3 German Parts Kit
H&K Heckler & Koch
$6,799.95HK German HK53 A3 Factory Parts Kit Complete Minus The Demilled Receiver Includes: HK German desirable 1/7 twist factory cold hammer forged barrel HK ambidextrous 2 round burst trigger group Factory HK 53 wide forearm 4 prong factory flash hider A3...$6,799.95 -
Out Of StockOn Sale
HK MP5-A3 Parts Kit - .40 S&W, 10mm
H&K Heckler & Koch
Now: $4,949.95Was: $5,499.95HK MP5 40 S&W A3 German Parts Kit - Used Genuine German HK MP5 40 parts kit Barrel - 3 lugs & threaded, cold hammer forged Trigger Group - Ambidextrous FBI (0,1) pictogram A3 Retractable Stock - correct 40 cal stock Bolt Group - .40...Now: $4,949.95Was: $5,499.95 -
HK MP5SD Parts Kit
H&K Heckler & Koch
$8,799.95H&K HK MP5SD German Parts Kit Genuine German H&K MP5SD parts kit in good condition. Ultra rare offering with all highly desirable parts including a like-new Navy 3 position trigger group with ESSL, H&K A3 collapsible stock, and the original...$8,799.95 -
HK MP5K-PDW German Parts Kit
H&K Heckler & Koch
$7,199.95Heckler and Koch HK MP5K-PDW German Parts Kit Finally after searching all over the country we are able to bring you the rare and ultra-desirable MP5K-PDW parts kit. In good to like new condition with a factory marked HK folding stock and the ultra...$7,199.95 -
On Sale
HK MP5K-PDW German Parts Kit - 4 Position Trigger Group
Now: $6,479.95Was: $7,199.95HK MP5K-PDW German Parts Kit: Rare and ultra desirable MP5K-PDW parts kit. In good to like new condition with a factory marked HK folding stock and the ultra desirable 4 position 0, 1 , 3 , F burst trigger group , 3-lug threaded barrel (1/2 x 32...Now: $6,479.95Was: $7,199.95 -
On Sale
HK Hensoldt 90 Series Aiming Projector
H&K Heckler & Koch
Now: $7,199.95Was: $7,999.95H&K Hensoldt 90 Series Aiming Projector Ultra rare Heckler & Koch Hensoldt Aiming Point Projector. In the original wooden case with all accessories, including IR lens, lens cleaning brush, spare bulbs, tweezers, cleaning cloth, etc. NIB. The...Now: $7,199.95Was: $7,999.95