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 G36 Bolt Head, Complete
GSG9
$0.00G36 Bolt Head - Complete - USA G36 Bolt Head allows the use of double stack magazines in your SL8 conversion to high capacity G36, Magpul or AR15 Magazines. Perfect for the G36 conversions or for a spare part to have on hand. Made in the USA from 9310,...HKP-18983$0.00 -
HK G36 Magazine - 10 Round - Factory - FDE
H&K Heckler & Koch
$87.95HK G36 10 Round Magazine in Flat Dark Earth (FDE) Compatible With: G36 G36K G36C Double Stack Capacity Magwell Converted SL8's Specifications: Capacity: 10-rounds Condition: New, rare find Manufacturer: HK GermanyHKP-18727$87.95 -
HK UMP Magazine Housing - 30 Round - .40 S&W
H&K Heckler & Koch
$69.95New HK Heckler and Koch .40 S&W 30 Round Magazine Housing for HK UMP New HK German UMP .40 30 round factory magazine body. A great spare part in the event that your mag body is damaged or cracked.HKP-16369$69.95 -
HK UMP Magazine Follower - .40 S&W
H&K Heckler & Koch
$9.95HK UMP 30 Round Magzine Follower .40 S&WHKP-01901$9.95 -
Out Of Stock
HK UMP Magazine Locking Plate - .40 S&W
H&K Heckler & Koch
$9.95H&K UMP (.40 S&W) Magazine Locking Plate German HK.HKP-16340$9.95 -
On Sale
HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug
GSG9
Now: $259.95Was: $349.95GSG9 UMP (9mm) Barrel - Threaded 1/2x28 - 3-Lug This barrel is the perfect addition to your UMP conversion as it includes the 3-lug and threaded 1/2x28 end of the barrel for use with suppressors or factory HK 3-lug flash hiders. Specifications: Threaded...HKP-02281Now: $259.95Was: $349.95 -
Out Of Stock
HK PTR PDW Bolt Group - Complete
HKP HK Parts
$379.95US Made PTR Bolt Group Complete Semi-Auto 308. Factory correct bolt head and locking piece for use in the PTR PDW chambered in 7.62X51 or 308. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.HKP-17389$379.95 -
Raddlock 91/G3 (7.62x51/.308) Magazine Sled
Raddlock
$12.95Magazine Block for HK G3,91, PTR .308 Rifles. The Raddlock magazine block converts a mag-fed rifle to a single-shot rifle as dictated by certain restrictive states. Once installed, the rifle will only be able to be loaded through the ejection port...HKP-02448$12.95 -
HK91, G3 Bolt Head - Stripped
$96.95New US Made Bolt Head- Incomplete: CNC machined from HK blueprints to precise tolerances that use the proper steel and heat-treat processes. You WILL NOT find a better quality offering of HK Parts anywhere. All of the bolt heads we offer on our website...HKP-16636$96.95 -
HK53 Front Sight Tower - Factory Correct
H&K Heckler & Koch
$169.95HK53 Front Sight Tower - (Triple Frame) This factory HK German triple frame is the factory-correct part for your HK53 build (not the incorrect G3/91 triple frame).HKP-02238$169.95 -
Out Of Stock
HK33, HK53, HK93 Cocking Lever Axle Pin
H&K Heckler & Koch
$0.00New HK German 93, 33, & 53 Cocking Handle Axle Pin This is a new HK factory part made for the .223 HK rifle for the HK93/33/53, not surplus or a cut-down .308 part, as others offer. This part is the axle pin that holds the cocking handle in place on...HKP-01060$0.00 -
HK MP5, HK94, HK33, HK53, HK93 Stock - AR15 Style
HKP HK Parts
$197.95HKP HK Parts AR-15 Style Magpul Stock for HK33, HK53, and HK93 - 5.56 / .223 US manufactured AR15 to HK33, HK53, HK93 series stock assembly with Magpul MOE stock. Each unit comes complete and ready to install on your HK33, HK53, HK93 or HK94, MP5...HKP-16271$197.95