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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On Sale
HK91, G3 20 Round Magazine - Steel - Refinished - BLEMISHED
H&K Heckler & Koch
Now: $47.95Was: $84.95H&K 91/G3 (7.62x51/.308) 20 Round Magazine - Steel - Refinished - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK G3 factory steel...HKP-21587-BNow: $47.95Was: $84.95 -
HK33, HK53, HK93 A3 Telescopic Stock - OD Green
MKE
$259.95MKE Telescopic Stock in OD GREEN for HK33, HK53, HK93 The MKE telescopic HK33 stock is an easy-to-install telescopic stock system designed to deliver superior comfort and reliable weapon control. The simple lock/release system is easy to operate,...HKP-21181$259.95 -
On Sale
HK416, MR566, HK417 MR762 Buffer Retainer
HK HAUS
Now: $7.95Was: $9.95HK Haus Buffer Retainer for HK416, HK417 New HK USA manufacture for the HK416 and HK417 family of firearms. Made from stainless steel.HKP-20040Now: $7.95Was: $9.95 -
HK45, HK45 Compact Magazine Spring - 10 Round
H&K Heckler & Koch
$6.95Heckler and Koch 10 Round Magazine Spring for HK45, HK45 Compact Factory German HK magazine spring for the 10-round HK45 and HK45 Compact magazines. Made from high-strength steel and designed to maintain proper feeding pressure for reliable function...HKP-01848$6.95 -
HK MP5, HK90 Series Trigger Box - Semi Auto - Billeted
HKP HK Parts
$69.95HKP HK Parts USA America Made Trigger Pack for HK90 Series, Century, PTR, and Zenith This part is a perfect 922r compliant part as it counts as one of the needed US-made parts. Each unit comes with new style updates for ease of putting parts into...HKP-02384$69.95 -
On Sale
HK Single Point Leather & Cotton Sling
HKP HK Parts
Now: $47.95Was: $59.95Single Point Leather & Cotton Sling Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a...HKP-21321-MNow: $47.95Was: $59.95 -
On Sale
Sig Sauer P320 Nitron Compensator - 9mm
HKP HK Parts
Now: $99.95Was: $189.95HKP SIG P320 Compensator - Nitron 9mm Our P320 Nitron compensator reduces recoil and muzzle flip. Each unit is 100% US made and finished in durable black cerakote. Our Nitron compensator features a picatinny rail to mount lights/lasers...HKP-21300Now: $99.95Was: $189.95 -
On Sale
Picatinny - Dual Folding Adapter - Stabilizer
Strike Industries
Now: $167.95Was: $197.99Strike Dual Folding Adapter - Stabilizer This new stabilizer is the perfect option for the MP5 or MP5K platform that utilizes a 1913 picatinny back plate. For a quick and easy ambidextrous folding action. The Strike Dual Folding Adapter is a...HKP-21288Now: $167.95Was: $197.99 -
On Sale
T65 Rifle Parts Kit - Gas Piston - Vintage Taiwanese
Other
Now: $899.95Was: $1,119.95Taiwanese T65 Gas Piston Rifle Parts Kit - Vintage We have a limited number of these super rare gas piston rifle parts kits. Each kit was used in Central & South America during active military conflicts and civil war. These kits are heavily...HKP-19676Now: $899.95Was: $1,119.95 -
On Sale
HK P30SK Compensator - Rail Mount
HKP HK Parts
Now: $134.95Was: $169.95HKP HK P30SK Rail Mount Compensator - Black This HK P30SK rail mount compensator is the perfect accessory brought to you by HK Parts. This compensator has a sleek design that flows with the lines of the firearm for a seamless addition.The HK Parts P30SK...HKP-20171Now: $134.95Was: $169.95 -
HK Pistol O-Ring - Barrel - .40 S&W
H&K Heckler & Koch
$4.95New HK German Black .40 Cal Barrel O-ring For All .40 Caliber Threaded Barrels This factory part is a high wear and replacement item as the O-ring provides the seal between the slide and the barrel, which provides a secure lockup and increased accuracy...HKP-02126$4.95 -
HK416, MR556, HK417, MR762 Rail Cover Set
H&K Heckler & Koch
$69.95H&K HK MR556/MR762/416/417 Rail Cover Set Brand new Heckler & Koch Picatinny rail covers made of high impact HK polymer. Each rail is equipped with a quick release tab & marked with the HK logo. Specifications: Length: 8...HKP-17704$69.95