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
HK VP9, VP40 Compensator - Quick Detach - Blue - BLEMISHED
HKP HK Parts
Now: $79.95Was: $149.95Comp Weight™ - HK VP9 / VP40 Quick Detach Compensator - Blue - BLEMISHED Easy on, easy off- Quick Detach technology DOES NOT INCLUDE ALLEN WRENCH COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...HKP-18630-BNow: $79.95Was: $149.95 -
Out Of Stock
HK MP5, MP5K Optic Mount - Low Profile - T1, H1 Aimpoint
Aimpoint
$49.95Aimpoint T1 & H1 Low Profile Mount For HK MP5, MP5K New US manufactured scope mount that is similar in style as the revered B&T optics mount only made right here in the USA. All aluminum and made to last with a price that is attractive & hard...HKP-17117$49.95 -
On Sale
HK416, MR556 10" M-LOK Rail System - FDFE
KDG Kinetic Development Group
Now: $287.95Was: $319.95Rail System - 10" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like the...HKP-19240Now: $287.95Was: $319.95 -
HK SL8-1 Locking Lever - Complete
H&K Heckler & Koch
$39.95H&K HK SL8-1 Complete Locking Lever Heckler & Koch USC & SL8-1 Complete Locking Lever is a top-tier, factory original component crafted from robust black polymer. This German-made part is specifically engineered for the HK SL8, USC, and UMP...HKP-16375$39.95 -
Out Of Stock
HK SL8 Windage Adjustment Spring
H&K Heckler & Koch
$4.95HK SL8 Windage Adjustment Compression SpringHKP-16400$4.95 -
HK G36C, SL8 Flash Hider
H&K Heckler & Koch
$165.99H&K G36C (5.56/.223) G36C Flash Hider - Threaded 15x1 RH Threaded 15x1. Perfect for HK rifle barrels and conversion barrels. Specifications: Threaded 15x1 RH Compatible With: HK G36C HK SL8 5.56/.223 Firearms Threaded 15x1 RHHKP-00630$165.99 -
B&T APC, GL06 Adjustable Stock - Folding
B&T Brugger & Thomet
$344.95B&T BT APC, BT GL06 Foldable/Length Adjustable Stock Swiss made B&T folding & 3 position adjustable stock for the APC and GL06. This is a military grade stock as supplied by B&T to military and law enforcement units worldwide. B&T AG...HKP-18352$344.95 -
HK VP9SK, VP40SK Backstrap - Small - FDE
H&K Heckler & Koch
$23.95H&K VP9SK, VP40SK Backstrap - Small - FDE HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18961$23.95 -
On Sale
HK VP40 International Holster - RH
Comp-Tac
Now: $62.95Was: $74.95Comp-Tac HK VP40 International RH Holster The International is an outside the waistband holster with a modular mounting design giving the user 16 holster options in 1. Designed to be worn at 3:00 this holsters is perfect for competition shooting,...HKP-17470Now: $62.95Was: $74.95 -
HK MP5 Navy Housing - SEF - Clipped and Pinned - .40 S&W, 10mm
H&K Heckler & Koch
$149.95Heckler and Koch MP5 40,10 SEF Navy Style Housing - Clipped and Pinned - LIKE NEW A perfect upgrade for your HK MP5 40/10 build. This is the only SEF style housing available for the MP5 40/10 family of firearms. Each housing is hand picked and...HKP-20577$149.95 -
On Sale
HK VP9SK Grip Wrap for Large Backstraps - Granulate
Talon Grip
Now: $17.95Was: $19.99TALON Grip - H&K VP9SK - Granulate Black - Large Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...HKP-20233Now: $17.95Was: $19.99 -
On Sale
HK MP5K Binary Pistol Build Complete Limited Edition Kit
HKP HK Parts
Now: $2,688.95Was: $2,987.95Limited Edition Parts Kit - MP5K With Binary Trigger Group Our limited edition parts kit will include the highly desirable Binary 3 position Navy trigger group with a universal style housing that will accommodate for a SP5K style semi auto shelf and a...HKP-20025Now: $2,688.95Was: $2,987.95