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 VP40, USP Compact 9mm, .40 S&W Extractor
H&K Heckler & Koch
$42.95H&K HK VP40/USPC 9mm/.40 S&W Extractor New HK German factory OEM part. Compatible With: HK VP40 (Not for the VP9) HK USP Compact 9mm HK USP Compact 40 & .357 HK USP LEM modelsHKP-01130$42.95 -
HK MR556, MR762 Fixed Tactical Sling Adapter
H&K Heckler & Koch
$86.95HK MR556 & MR762 Factory Sling Adapter - Fixed Factory HK German design & the finest design available & made to last. New HK manufactured part to allow the factory HK416, MR762 slings to fit & work on the MR556, MR762 as this adds...HKP-17553$86.95 -
HK416, HK417 Buttstock Release Lever
H&K Heckler & Koch
$21.95Heckler and Koch Buttstock Release Lever HK416 and HK417 The buttstock release lever locks the telescopic buttstock to the tubular rear buttstock extension. The buttstock is adjustable in length in 6 positionsHKP-18948$21.95 -
On Sale
HK416 Handguard - 9" Crux KeyMod - .22LR
Strike Industries
Now: $159.95Was: $249.95Strike Industries CRUX KeyMod Handguard for HK416 .22 LR - 9 Inch Lightweight 9-inch KeyMod handguard designed for HK416, HK MR556, and HK416 .22 platforms. This rail system reduces overall front-end weight compared to the factory assembly while...HKP-17347Now: $159.95Was: $249.95 -
HK G36 Lower Housing - 3 Position Navy 0,1,F Pictogram
H&K Heckler & Koch
$600.00H&K G36 (5.56/.223) 3 Position (0,1,F Pictogram) Navy Style Lower Housing This lower housing, featuring the 3 position (0,1,F) pictogram, is offered without internals. Previously, G36 lowers were only available as complete trigger groups, including...HKP-02230$600.00 -
Out Of Stock
HK UMP, G36 Notched Disk - 3 Position - 9mm, .40 S&W, .45 ACP, 5.56 / .223
H&K Heckler & Koch
$0.00HK Ratched Wheel Notched Disk For 3 Position Lowers Compatible With: HK G36 HK UMPHKP-01854$0.00 -
HK UMP, USC Rear Sight, Incomplete
H&K Heckler & Koch
$49.95HK Heckler and Koch Incomplete Rear Sight for USC and UMP Includes: Rear Sight ONLY Compatible With: USC UMPHKP-16372$49.95 -
Out Of Stock
HK UMP Barrel - 9mm - 16.5 Inch
Michaels Machines
$549.95MM HK UMP (9mm) Barrel - 16.5 Inch Fluted just like the factory HK barrels with 16 flutes.HKP-02282$549.95 -
Out Of Stock
HK21E, HK23E Carry Handle
H&K Heckler & Koch
$0.00HK German HK21E, HK23E Carry Handle New HK German factory HK carry handle for the HK21E, HK23E series of firearms. This offering is the handle only. The carry handle can also be adapted to standard HK21 models as well as the following firearms. HK21...HKP-00576$0.00 -
On Sale
HK23E Ammunition Belt Box - 5.56 / .223 - US
Michaels Machines
Now: $539.95Was: $599.95HK23E & MM23E Belt Box Brand new HK23E, MM23E US made feed box. The German units have long since been out of production. These are exact copies of the German units. Made in the USA. Compatible With: MM23E HK23EHKP-17579Now: $539.95Was: $599.95 -
PTR PDW Barrel - 7.62 / .308 - 9" - SBR
PTR
$189.99PTR PDW .308 Pistol or SBR Barrel- USA This part comes new in the white, never installed, and ready for the HK project. Features: Just under 9" inches long 1:10 twist U.S. made barrel counts as one 922r compliant part Please Note: Front sight towers...HKP-02788$189.99 -
Out Of Stock
HK PTR-32 Bolt Group - Complete - PDW
HKP HK Parts
$379.95US Made PTR 32 PDW Bolt Group Complete Semi-Auto. Factory correct bolt head and locking piece for use in the PTR 32 chambered in 7.62X39. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.HKP-17387$379.95