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 MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1
HKP HK Parts
$0.00HKP HK MP5K Apparel and Patch Collection - Version 1 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and...HKP-22454-M$0.00 -
HK417, MR762A4 Bolt Catch, Release - Ambi
H&K Heckler & Koch
$69.95Heckler and Koch MR762 A4 Bolt Catch/Release - Ambi Factory ambidextrous bolt catch lever for the MR762 A4. The A4 variant of the MR762 introduced ambi controls for the bolt catch/release not...HKP-21960$69.95 -
On Sale
HK90 Series S1 Curved Trigger - Skeletonized
HKP HK Parts
Now: $43.96Was: $68.95HKP 90 Series S1 Curved Trigger - Skeletonized - USA The HK Parts Skeletonized S1 curved 90 series trigger is expertly engineered for exceptional performance and reliability. It fits all 0, 1, SEF,...HKP-22180-MNow: $43.96Was: $68.95 -
On Sale
HK MP5 Binary SL Selectors
HKP HK Parts
Now: $44.59Was: $69.95HKP HK MP5 Binary SL Selectors: Our selectors were made to work specifically with the Magpul SL housing in conjunction with the popular Franklin Armory Binary trigger pack. We aimed to keep the same...HKP-21438Now: $44.59Was: $69.95 -
HK MP5 ACR Stock and Adapter
Magpul
$599.95HK MP5 Magpul ACR Stock with HKP Adapter: The HKP adapter and Magpul ACR stock combo is a complete, drop-in ready unit. Magpul discontinued production of the ACR stock and we have just a few units...HKP-21370-M$599.95 -
HK USP Magazine with Extension - 25 Round - 9mm
HKP HK Parts / Heckler & Koch
$119.95HKP 25 Round HK USP 9mm Magazine HK Parts +10 magazine extension coupled with a 15 round magazine. Each unit is then fully assembled as a 25 round magazine. Ideal for competitive shooters, concealed...HKP-21357-M$119.95 -
HK416 Gas Block Assembly Tool
Nefarious Arms
$94.95Nefarious Arms HK 416 Gas Block Assembly Tool A Nefarious Arms creation for those that like to service or replace their 416 gas block. This assembly tool will effortlessly help you assemble or...HKP-21273$94.95 -
HK416, MR5566 Sling Loop - Ambi
H&K Heckler & Koch
$154.95H&K HK MR556/416 Ambi Sling Loop Ambidextrous sling loop for a quick and easy carrying option. compatible with any sling that attaches via a sling hook. Intended for the HK 416 format but is...HKP-20341$154.95 -
HK VP Series Curved Trigger - Red
Lazy Wolf
$134.95Lazy Wolf Guns Curved Trigger for the HK VP Series In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 and VP40 handguns. The drop in VP9 series trigger...HKP-19152$134.95 -
On Sale
HK G3, HK91, PTR Handguard - Slimline Style
POF
Now: $12.72Was: $19.95POF Slimline HK91, G3, PTR Forearm - POF New POF HK-contract slimline standard-length handguard full size HK G3, 91, PTR rifles. Does not feature internal heat shield. Compatible With: HK91HKP-19560Now: $12.72Was: $19.95 -
Out Of Stock
HK USP Conversion Barrel - .40 S&W to .357 SIG - Non-Threaded
RCM
$237.50RCM HK USP .40 S&W To .357 SIG Conversion Barrel - Non-Threaded Each barrel is finely and painstakingly made from ordnance grade steel, heat treated, with a nitrided finish inside and out. This is...HKP-17746$237.50 -
HK45 Mag Pouch - Twin
Comp-Tac
$59.95Comp-Tac HK 45 Twin Mag Pouch The Comp-Tac Twin Magazine Belt pouch is an outside the waistband holder that carries two magazines attached together. Designed to be worn at 9:00 for a right handed...HKP-17501$59.95