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 MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin
H&K Heckler & Koch
$324.95H&K MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin This H&K grip housing is designed for MP5 models with push pin type receivers. Featuring the iconic Navy housing and 3 position pictogram (0,1,F), this housing provides reliable and...HKP-16065$324.95 -
HK G3 A2 Adjustable Stock Extension
USA
$69.95HK G3 A2 Adjustable Stock Extension Each stock extension is adjustable in 1/2" increments to enable you to achieve the proper length of trigger pull. This allows you a full 1.50" in length adjustments. These extensions are manufactured using high-impact,...HKP-00872$69.95 -
HK MP5SD Apparel - Hats, Patches, and Shirts
HKP HK Parts
$0.00HKP HK MP5SD Apparel and Patch Collection Represent your platform with the HK Parts MP5SD Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...HKP-22457-M$0.00 -
HK VP9, VP40 Hybrid Trigger - Adjustable
Grayguns
$125.00HK VP9, VP40 Adjustable Hybrid Trigger The Adjustable Hybrid Trigger for the HK VP9 and VP40 Series fits the standard variants. The trigger features an over-travel adjustment while providing a 90-degree optimal trigger break. This...HKP-22343$125.00 -
HK416, MR556 Flash Hider - ROTEX IIA - Threaded M15x1
B&T Brugger & Thomet
$119.95B&T Brugger and Thomet's Flash Hider for your HK416, HK33, HK53, and HK93. Swiss-made B&T flash hider for all 5.56 / .223 firearms threaded in M15x1. Features a precision machined interface for Rotex IIA and Surefire suppressors. Compatible...HKP-22215$119.95 -
HK CC9 Backstrap - Large
H&K Heckler & Koch
$14.95H&K CC9 Large Backstrap Made in Germany by H&K, this CC9 large backstrap provides a larger grip profile for a custom fit. Compatible With: HK CC9HKP-22109$14.95 -
HK23, HK21, HK11 Starter Tab with 50 Links - 7.62x51 - M13
$24.95M13 Starter Tab with 50 M13 Links Designed for efficient ammunition handling, this set includes one M13 starter tab and 50 M13 disintegrating metallic links. Ideal for use with 7.62mm linked ammunition belts, providing reliable feeding and easy assembly...HKP-21904$24.95 -
On Sale
HK91, G3, PTR Bolt Head Complete - Used
H&K Heckler & Koch
Now: $78.95Was: $99.95German HK G3 & HK 91 & PTR Bolt Head Complete - Used German Date Coded Made in Germany. Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3 rifles. Each bolt head is in good shape...HKP-21902Now: $78.95Was: $99.95 -
On Sale
Rifle Case Accessory Pouch - Velcro Mount
B&T Brugger & Thomet
Now: $12.95Was: $24.95B&T Rifle Case Accessory Pouch - Velcro The B&T Accessory Pouch is a versatile and durable storage solution designed to keep essential firearm accessories secure and easily accessible. Whether you need to store bolts, suppressors, small...HKP-21882Now: $12.95Was: $24.95 -
On Sale
HK VP9 Rail Mount Compensator - Midnight Bronze
HKP HK Parts
Now: $129.95Was: $179.95HKP HK VP9 Rail Mount Compensator - Midnight Bronze This HK Parts VP9 rail mount compensator is the perfect accessory for your firearm. Our compensator has a sleek design that flows with the lines of the firearm for a seamless addition. Now in the latest...HKP-21674Now: $129.95Was: $179.95 -
B&T GHM9 SD Handguard
B&T Brugger & Thomet
$255.00B&T GHM9 SD Handguard Upgrade your GHM9 SD with this precision-engineered handguard from B&T, designed specifically for the integrally suppressed GHM9 SD platform. This handguard features M-LOK slots at the 3, 6, and 9 o’clock positions for...HKP-21739$255.00 -
B&T 1/2x28 Direct Thread to Hub Adapter
B&T Brugger & Thomet
$89.95B&T Direct Thread 1/2x28 Hub Adapter Convert any 1/2x28 RH threaded barrel to accept Hub devices with this direct fit adapter. Compatible With: HK MP5, MP5K, SP5, SP5K HK MR556 HK UMP 9mm B&T APC223, SPC223 B&T APC9K B&T GMH9...HKP-21506$89.95