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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HK90 Series Trigger - Used
H&K Heckler & Koch
$14.95H&K 90 Series Trigger-Used German 90 series surplus trigger in used condition taken from demilled HK German G3 firearms. Compatible With: HKHKP-17920$14.95 -
HK416, MR556, HK417, MR762 Pistol Grip
H&K Heckler & Koch
$89.99HK Heckler and Koch's Pistol Grip with Storage - Black HK German factory pistol grip with a storage compartment in the bottom. It has a superior fit and feel to any other grip on the market. This is...HKP-22298$89.99 -
HK VP9, VP9SK, VP40 Safety Clamp
H&K Heckler & Koch
$5.95H&K HK VP9/VP9SK, VP40 Safety Clamp - Black Genuine H&K safety clamp. CompatibHKP-16795$5.95 -
Out Of Stock
HK417, MR762, G28 Adjustable Buttstock Set
H&K Heckler & Koch
$599.95Heckler and Koch HK G28 Fully Adjustable Stock for MR762, HK417, G28 The hard to find elusive HK G28 adjustable stock kit complete with the upgraded parts needed to convert a stock MR762 or HK417 to...HKP-16761$599.95 -
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...HKP-17704$69.95 -
HK91, G3 Barrel Chamber Flute Cleaning Brush
H&K Heckler & Koch
$25.95Heckler and Koch New Chamber Flute Brush for HK91 and HK G3 7.62x51 / .308 This brush is a must-have for cleaning the chamber flutes on a HKG3 or HK91-style firHKP-00500$25.95 -
On Sale
HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH
HKP HK Parts
Now: $23.95Was: $29.95HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH The HK Parts micro comp & thread protector strikes a balance between a lightweight, minimalistic design and range functionality. The micro...HKP-21635Now: $23.95Was: $29.95 -
HK G36, G36K Folding Stock
GSG9
$115.00GSG9 Full Length Stock for HK G36 HK G36 10.5" Stock complete for G36 firearms. The G36, G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter...HKP-18219$115.00 -
HK45, HK45 Compact, USP Trigger Bar Detent Spring
H&K Heckler & Koch
$5.95H&K HK USP/45/45C Trigger Bar Detent Spring This is a common replacement part as it can become worn or lost. Compatible With The Newer Style HK45 & HK45C Models:HKP-01254$5.95 -
HK MP5 A3 Retractable Buttstock - Surplus - Good Condition
H&K Heckler & Koch
$617.95Military German manufactured A3 Retractable Stock - Used Each Used German HK stock will vary from Fair-Good Shape (early 80's manufacture) A one-time offering of some well used German military...HKP-16659$617.95 -
Out Of Stock
HK MR556, MR762 A4 Safety Lever - Left
H&K Heckler & Koch
$12.95H&K MR556/MR762 A4 Safety Lever - Left Left-side selector lever for MR-series ambidextrous safety systems.HKP-21965$12.95 -
HK Single Point Leather & Cotton Sling
HKP HK Parts
$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...HKP-21321-M$59.95