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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HK P30L, P30, P30SK Straight Trigger - Hybrid
Grayguns
$95.00Grayguns HK P30, P30L, P30SK Hybrid Straight Trigger The Grayguns hybrid straight trigger blends the look of a straight trigger with a slight curve to reduce trigger reach. Consider this hybrid to be the best of both worlds for your P30 platform...HKP-22329$95.00 -
HK MP5 Recoil Spring - Enhanced
HKP HK Parts
$16.95HKP HK MP5 Enhanced Recoil Spring The HK Parts enhanced recoil spring offers a 5% increase in strength over the factory MP5 spring. Ideal for high round count firearms, suppressed setups, or simply to improve longevity. Won't fit F style recoil rods or...HKP-22209$16.95 -
HK CC9 Holster - Comp Carry - RH
Comp-Tac
$59.95Comp-Tac HK CC9 Comp Carry Holster - Right Hand Designed for the HK CC9 with the HK Parts MOD 1 compensator, this holster offers a secure fit, smooth draw, and adjustable cant and ride height for optimal comfort and performance during concealed...HKP-22096$59.95 -
PTR PDW Bolt Carrier - Full Auto - 7.62x39 / 7.62x51 / .308
PTR
$229.95 - $330.95PTR PDW (7.62x39) & (7.62x51/.308) Pistol Full Auto Bolt Carrier Made by PTR using the same blueprints and materials the German HK factory uses has allowed PTR91 to manufacture the finest of HK style firearms here in the US. The PDW F/A carrier is...HKP-20165-M$229.95 - $330.95 -
On Sale
Micro Comp - Threaded 14.5x1 LH - .40 S&W
HKP HK Parts
Now: $15.95Was: $29.95HKP .40 S&W Micro Comp - Threaded 14.5x1 LH The HK Parts Micro Comp & Thread Protector is a lightweight, dual-function device serving as both a compensator and thread protector. It attaches easily to any factory-spec 14.5x1 LH .40 S&W barrel,...HKP-19954Now: $15.95Was: $29.95 -
HK417, MR762, G28 Buttstock Set - Adjustable - RAL8000
H&K Heckler & Koch
$589.95H&K HK MR762, HK417, G28 Adjustable Buttstock Set - RAL 8000 HK G28 adjustable stock kit complete with the necessary parts convert a stock MR762 or HK417 to G28 spec. Includes: G28 fully adjustable stock G28 buffer tube/receiver extension G28...HKP-16760$589.95 -
PTR Flash Hider - G28 Style - Threaded 5/8x24 RH
MFI
$79.95MFI PTR Flash Hider - .223/5.56 - G28 Style - 5/8x24 RH The G28 2nd Gen flash hider is designed for 2016 and later PTR production models, as well as other firearms with 5/8x24 threaded barrels. This flash hider features a deep counter bore,...HKP-17940$79.95 -
HK MP5K, SP89 End Cap with Buffer - 9mm - Steel
Choate
$45.95MP5K & SP-89 Steel End Cap With Replaceable Rubber Buffer Fits perfectly on all HK MP5K-type builds or projects. All metal construction, so you know it will last. Each unit comes with a sling loop for use with multiple sling types. Compatible...HKP-00395$45.95 -
Out Of StockOn Sale
HK MP5, MP5K, AP5-P Optic Mount - Picatinny
MKE
Now: $39.95Was: $49.95MKE HK MP5K, AP5P OEM Picatinny Optic Rail MKE Picatinny optic rail for the MP5K platform. OEM part for the Century AP5-P and AP5-M. This rail is the K specific length but is compatible with full size MP5 guns as well. Compatible With: HK...HKP-22334Now: $39.95Was: $49.95 -
Uzi Sling
IMI
$49.95Uzi Sling - New Old Stock Original IMI sling new old stock complete with steel buckle, two leather loops and steel tip keepers. Once they're gone, they're gone for good. Compatible With: Action Arms Uzi Micro & Mini SMG Model A&B...HKP-21540$49.95 -
HK VP9 R3D 2.0 Night Sights - Green
XS Sights
$137.49XS Sight Systems VP9OR R3D 2.0 Night Sights - Green Their second-generation R3D night sights are engineered to give you a brighter stronger set of sights. Easily install their sights with a set that requires 50% less force for installation. R3D sights...HKP-21466$137.49 -
HK MP5K, SP5K-PDW, SP89 Binary Trigger Group - Ambi - BFSIII - 9mm
FA Franklin Armory
$849.95Franklin Armory HK MP5K-AR Binary Trigger Group Introducing our new MP5K-AR Navy ambidextrous lower housing, paired with a Franklin Armory Binary Trigger pack and a Magpul MOE grip for a complete MP5K-AR Binary Trigger group. This drop-in unit fits all...HKP-21337-M$849.95