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
HK417, MR762 Handguard - Extended Picatinny
H&K Heckler & Koch
$656.95HK MR762, HK 417 Extended Picatinny Handguard Complete HK German manufacture. Each unit comes with both of the mounting screws. HK's extended 13" rail allows for longer sight radius and more rail...HKP-16656$656.95 -
HK USPC .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
$105.99Recoil Spring Guide Rod Assembly Complete For The HK USP Compact 40 Cal & .357 SIG New HK German factory part. This is a great spare or replacement item to have on hand. Compatible With:HKP-01479$105.99 -
Out Of Stock
HK Mark 23 Barrel - .45 ACP - 5.38" - Non-Threaded
RCM
$250.00RCM HK Mark 23 .45 ACP Flush Fit Barrel - Non-Threaded This custom-made barrel is expertly crafted from ordnance-grade steel, heat-treated, and finished with a highly desirable nitride coating...HKP-17622$250.00 -
On Sale
HK USP Mag Pouch - Twin - .45 ACP
Comp-Tac
Now: $54.86Was: $60.95Comp-Tac HK USP .45 ACP 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...HKP-17495Now: $54.86Was: $60.95 -
HK MP5 SEF Trigger Pack, Complete - Full Auto - .40 S&W, 10mm
H&K Heckler & Koch
$239.95HK German SEF Full Auto Trigger Pack Complete Factory HK German MP5 40 caliber full auto trigger pack is unmodified as it comes from HK. Our F/A trigger pack comes with a used factory German HK...HKP-00151$239.95 -
HK MP5K, SP89, SP5K Trunnion - 9mm - RS
RCM
$69.95MP5K Reverse Stretch Trunnion US-made to exact factory HK specifications for the HK MP5K, SP89 9mm builds. There is a difference between the MP5K and the MP5 trunnion. This offering is the correct...HKP-02242$69.95 -
Out Of Stock
HK MP5, SP5, HK94 Optic Mount - Armasuisse Version
B&T Brugger & Thomet
$219.95B&T MP5 Mounting Rail, Armasuisse Version Compatible With: HK MP5, SP5 HK 94HKP-16864$219.95 -
On Sale
HK417, MR762 Upper Receiver Rod Tool
MI Midwest Industries
Now: $143.96Was: $159.95Midwest Industries Upper Receiver Rod Tool for HK417, MR762<HKP-22353Now: $143.96Was: $159.95 -
Out Of Stock
HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished
HKP HK Parts
$34.95HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished HK steel SEF short axle selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF...HKP-21921$34.95 -
HK MP5 Pistol Stabilizing Brace - SBA5
SB Tactical
$264.95SB Tactical HK MP5 SBA5 Pistol Stabilizing Brace SB Tactical brace married with our MP5 end cap creates a true drop-in brace. With a 5-position adjustable length, this brace can be tailored to fit...HKP-21672-M$264.95 -
On Sale
HK VP9, VP40 Compensator - Quick Detach - Steel
HKP HK Parts
Now: $74.96Was: $199.95HK Parts HK VP9 Comp Weight™ Compensator - Quick Detach - Steel Easy on, easy off - Quick Detach technology. Doubles as a compensator as it directs pressure down on the frame to reduce recoil, and...HKP-18154Now: $74.96Was: $199.95 -
On Sale
HK VP9 Tactical Holster, Lever, and Compensator - RH
Comp-Tac
Now: $71.97Was: $89.95Comp-Tac HK VP9 Lever + Compensator + Align Tactical Holster – Right Hand This custom made Comp-Tac International OWB holster is for your HK VP9L pistol and it that allows you to have the align...HKP-20978Now: $71.97Was: $89.95