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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HK45 Compact, USP Compact Recoil Spring Assembly
H&K Heckler & Koch
$89.95Recoil Spring Assembly Complete With Captive Spring, Buffer, and Guide Rod A must-have spare part for your HK compact .45 pistol. New HK German factory fresh manufacture. Compatible With: USP Compact 45 USPC Tactical HK45 Compact HK45C TacticalHKP-01457$89.95 -
HK USP Magazine Locking Plate - 9mm, .40 S&W - High Capacity
H&K Heckler & Koch
$6.95Heckler and Koch High Capacity Magazine Locking Plate for HK USP 9mm and .40 S&W Compatible With: USP9 USP40HKP-02165$6.95 -
Out Of Stock
HK G36, UMP Sear Spring
H&K Heckler & Koch
$8.95HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.HKP-01866$8.95 -
On Sale
HK416, HK417, G3, HK33, G36 Flash Hider - Threaded 15x1 RH - CA/NY Compliant
HKP HK Parts
Now: $19.95Was: $24.95HKP (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH - CA/NY Compliant This muzzle device is a partially milled version (not completely milled) of the factory HK birdcage style flash hider found on the factory-correct HK models of rifles...HKP-12746Now: $19.95Was: $24.95 -
On Sale
HK MP5, HK90 Series Bushing Sleeve for Elbow Spring - Semi Auto
HKP HK Parts
Now: $6.95Was: $8.95HK Parts Distance Sleeve replacement for your elbow spring in your Semi-Auto MP5 New USA manufacture. Semi auto spacer for elbow spring on the HK 90 series trigger packs. Micro polished and made from stainless steel. This is the finest semi auto...HKP-18210Now: $6.95Was: $8.95 -
On Sale
HK MP5K, SP89, SP5K Modular Handguard - M-LOK - 9mm
DTAC Dakota Tactical
$135.95 - $159.95DTAC Dakota Tactical 9mm Modular M-LOK Handguard for HK MP5K, SP89, SP5K DTAC Dakota Tactical modular M-LOK handguard for HK MP5K pattern firearms. Made in the USA from T6 aluminum, this lightweight handguard features a slim 1.64 inch diameter, six...HKP-17808-M$135.95 - $159.95 -
HK MP5, HK33, HK53, HK93, G3 Housing - SEF Navy - Polymer - Clipped and Pinned
H&K Heckler & Koch
$179.95HK Heckler and Koch SEF Navy Polymer Housing Clipped and Pinned for 9mm, .308, and .223 HK MP5, HK33, HK53, HK93, HKG3 This navy style housing fits all shelved receivers. Specifications: Made In Germany Clipped and Pinned Navy Style Housing SEF...HKP-00164$179.95 -
HK91, G3, PTR Magazine - 20 Round - Date Coded - Like New
H&K Heckler & Koch
$34.95Heckler and Koch HK91, G3, PTR 20 Round Date Coded Magazine - Like New Factory German HK 20 round magazine for HK91, G3, and PTR91 pattern rifles. Offered in IB or IC date codes for those seeking original German date coded magazines in like new condition...HKP-22560-M$34.95 -
On Sale
HK USP Hybrid Trigger - Volker Precision
Volker Precision
Now: $87.95Was: $97.95HK USP Hybrid Trigger Volker Precision hybrid trigger for full size USP models in all calibers. Available exclusively at HK Parts Compatible With: HK USP9, USP40, USP45 Fitment Notes: This part is designed to work with factory internals ONLY. ...HKP-22442Now: $87.95Was: $97.95 -
Out Of Stock
HK MP5, MP5K, SP5, SP5K Magazine Loader
B&T Brugger & Thomet
$24.00B&T Brugger and Thomet Magazine Loader for HK MP5, MP5K and HK SP5, HK SP5K The world’s fastest magazine loader. The B&T magazine loader loads your MP5 magazines directly from the ammo box tray into the magazine in a fraction of the time...HKP-21687$24.00 -
On Sale
HK MP5 Brace and Stock Adapter - .22LR
HKP HK Parts
$79.95 - $87.95HKP HK MP5 .22LR Brace and Stock Adapter This is the perfect folding stock adapter to replace the polymer end cap on your MP5 .22. CNC machined from a solid billet of aircraft grade aluminum and cerakote for a durable finish. Compatible with...HKP-20795-M$79.95 - $87.95 -
On Sale
HK VP9SK Magazine - 12 Round - Translucent
Elite Tactical Systems
Now: $12.95Was: $16.99Elite Tactical Systems 9mm 30 Round Magazine HK VP9SK Features: Extended 12-round capacity Base plates interchangeable with ETS line of 9mm double stack magazines. Due to the wide variety of extensions for Glock, our mag base is designed to be...HKP-19198Now: $12.95Was: $16.99