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
HK33, HK53, HK93 Magazine Spring - 25 Round
H&K Heckler & Koch
$11.95HK 93, 33, & 53 Magazine Replacement Spring For 25-Round Magazines Hard to find and a must-have spare for your HK mags. No longer in production.HKP-00483$11.95 -
HK MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group
H&K Heckler & Koch
$1,999.95H&K MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group New HK German MP5, SP5 9mm 4 Position Burst (0,1,3, F) Trigger Housing professionally clipped & pinned and paired with a factory...HKP-16725$1,999.95 -
On Sale
HK MP5 Handguard - Single Rail
B&T Brugger & Thomet
Now: $179.96Was: $199.95B&T Brugger and Thomet Single Rail Handguard for HK MP5 The MP5 from Heckler & Koch is one of the most widely used submachineguns. B&T offers a selection of handguards for the MP5, the MP5SD and...HKP-16903Now: $179.96Was: $199.95 -
On Sale
HK MP5, AP5 Telescopic Stock - 4 Position
MKE
Now: $372.76Was: $465.95MKE 4 Position Telescopic Stock for MP5, AP5HKP-22857Now: $372.76Was: $465.95 -
HK416, MR556 ARC-Fire with Geissele Trigger - V2 with 416 Selectors - Ambi Controls
AS Designs / Geissele
$689.95AS Design HK416 and MR556 V2 ARC-Fire Trigger with Geissele*** Trigger, 416 Selectors, and 0-90-180, 0-45-90, and 0-45-180 Position Options AS Designs’ ARC-Fire (Active Reset Clutch) trigger is an...HKP-22803-M$689.95 -
On Sale
HK MP5K, SP5K, SP89 Lower - ARC
AS Designs
Now: $584.96Was: $649.95AS Designs ARC Lower for HK MP5K, SP5K, SP89 The ASD ARC Lower allows for faster follow-up shots by resetting after each shot. This is a true drop-in trigger and housing assembly featuring SEMI, ARC,...HKP-22546-MNow: $584.96Was: $649.95 -
HK MP5, G3, HK93 Flat Trigger - Skeletonized
HKP HK Parts
$68.95HKP 90 Series Flat Trigger - Skeletonized - USA The HK Parts skeletonized flat trigger for 90 series firearms offers improved control, reduced weight, and a modern look. Precision-machined from...HKP-21580$68.95 -
HK MR556 A4 Hammer Spring
H&K Heckler & Koch
$5.95H&K MR556 A4 Hammer Spring Genuine H&K hammer spring for the MR556 A4. Compatible With: HK MR556 A4HKP-22083$5.95 -
HK VP9, P30, HK45 Elevated Night Sights
H&K Heckler & Koch
$74.95H&K VP9/P30/HK45 Elevated Night Sights Elevated night sight set for improved visibility under low light conditions.HKP-22018$74.95 -
On Sale
HK P2000 MOD 1 Compensator
HKP HK Parts
Now: $161.96Was: $179.95HKP HK P2000 MOD 1 Compensator - Non-Threaded Barrel The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and...HKP-21815Now: $161.96Was: $179.95 -
Out Of Stock
HK USP Conversion Barrel - .40 S&W to 9mm - Threaded - 1/2x28
RCM
$214.95RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 1/2x28HKP-21787$214.95 -
$10.00