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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On Sale
HK416, MR556 Handguard - 12.5" - M-LOK
H&K Heckler & Koch
Now: $170.95Was: $189.95H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles. This handguard...HKP-99321Now: $170.95Was: $189.95 -
On Sale
HK MP5 Trigger Group - AC Unity Grip - Match Trigger
HKP HK Parts
Now: $411.09Was: $644.85HKP HK MP5 Trigger Group with AC Unity Grip & Match Trigger The MP5 match trigger group combined with the AC Unity grip is a great choice for anyone seeking a tactical and aesthetically pleasing...HKP-22250Now: $411.09Was: $644.85 -
Out Of Stock
HK P7, P9 Firing Pin
H&K Heckler & Koch
$79.95H&K Firing Pin 9mm Short/7.65mm - HK P7/P9 Ensures reliable ignition by striking the cartridge primer during firing. Compatible With: HK P7/P9HKP-22231$79.95 -
On Sale
HK VP9, VP40 Competition Magwell Extension - Orange - BLEMISHED
HKP HK Parts
Now: $52.46Was: $129.95HKP HK VP9, VP40 Competition Magwell Extension - Orange - BLEMISHED CONDITION MAY VARY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-21079-OR-BNow: $52.46Was: $129.95 -
On Sale
HK MP5 Roller Standard 8mm - .40 S&W, 10mm - BLEMISHED
H&K Heckler & Koch
Now: $9.71Was: $20.95H&K MP5 40/10 Standard 8mm Roller - BLEMISHED MEASURED 8.00mm ROLLER MARKED INCORRECTLY. PACKAGING MAY NOT REFLECT PRODUCT. CONDTION MAY VARY.HKP-00338-BNow: $9.71Was: $20.95 -
P90 LV Parts Kit - Laser Visible - 50 Round
FN
$3,899.95FN P90 LV Kit - Laser Visible - 50 Round - USED Extremely rare factory FN P90 LV (Laser Visible) parts kit with integrated laser sight manufactured by Laserex Technologies in Australia. This...HKP-22155$3,899.95 -
HK CC9 Disconnector
H&K Heckler & Koch
$13.95H&K CC9 Disconnector Made by H&K, this CC9 disconnector controls hammer release timing and prevents hammer follow during cycling. CompaHKP-22117$13.95 -
$95.95 -
On Sale
HK G3 Buttpad - USED
USA
Now: $3.71Was: $14.95HK G3 Buttpad - USED HK G3 buttpad, condition will vary from part-to-part vs. the pictured unit. Compatible With: HK G3HKP-99071Now: $3.71Was: $14.95 -
On Sale
HK MP5 Cocking Tube - Extrusion - 4" - Gunsmith Special
USA
Now: $11.21Was: $39.95HK MP5 4" Cocking Tube Extrusion - Gunsmith Special This 4" cocking tube extrusion is ideal for custom HK-style firearm builds, repairs, or refurbishments, providing a solid foundation for restoring...HKP-99060Now: $11.21Was: $39.95 -
On Sale
HK VP40 Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
RCM
Now: $193.46Was: $214.95RCM HK VP40 to 9mm Conversion Barrel - Threaded - 13.5x1HKP-21790Now: $193.46Was: $214.95 -
On Sale
HK416, MR556 Flash Hider - Threaded 1/2x28
B&T Brugger & Thomet
Now: $79.69Was: $125.00B&T Brugger and Thomet's Flash Hider - for 5.56mm NATO caliber weapons threaded 1/2x28 Factory B&T 1/2x28 flash hider for 5.56 rifles. Compatible With: HK 416HKP-21757Now: $79.69Was: $125.00