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
Bolt or Suppressor Pouch - Small - Velcro Mount
B&T Brugger & Thomet
Now: $9.95Was: $19.95B&T Bolt or Suppressor Pouch - Small - Velcro Mount The B&T Bolt Pouch is a Velcro attaching pouch to securely hold and protect your .308 bolt during transport and field operations. Designed for the B&T APR338 bolt but will fit other,...HKP-21886Now: $9.95Was: $19.95 -
Out Of Stock
HK P30 Conversion Barrel - .40 S&W to 9mm - Threaded - 1/2x28
RCM
$214.95RCM HK P30 .40 to 9mm Conversion Barrel - Threaded - 1/2x28 This 9mm conversion barrel is a drop-in replacement that allows your P30 to shoot the popular 9mm cartridge. The conversion barrel features a standard 1/2x28 thread pitch and includes a...HKP-21791$214.95 -
Holosun HK VP9/MP5 Reflex Sight HE-507K - Green
Holosun
$354.95Holosun HK VP9 SCS-MOS Reflex Sight The HE507K-GR X2 is an open reflex optical sight designed for subcompact pistol applications. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Additional features include...HKP-21677$354.95 -
Out Of Stock
B&T SPC9/10/45 Complete Stock Conversion Kit
B&T Brugger & Thomet
$165.00B&T SPC9, SPC10, SPC45 Complete Stock Conversion Kit Factory B&T kit to convert the B&T retractable brace to a retractable stock configuration. Includes: Buttplate Limiter Screws Compatible With: B&T SPC9 B&T SPC10 B&T...HKP-21731$165.00 -
Out Of Stock
B&T Telescopic Stock End Cap
B&T Brugger & Thomet
$8.95B&T Telescopic Stock End Cap B&T replacement end cap for telescopic stocks. Limits the extension of the stock to keep it from sliding out of the guides.HKP-21721$8.95 -
R3D 2.0 Night Sights - Orange
XS Sights
$127.95XS Sight Systems R3D 2.0 Night Sights - Orange 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 are...HKP-21464$127.95 -
HK/Hogue Ballista First Responder Knife
Hogue
$239.95H&K/Hogue Ballista First Responder Knife 3.5" Drop Point Blade - Black CerakoteRed/Black ChromaCut G10 Frame Features: Frame: red/black chromacut Deep carry pocket clip (right or left handed, tip up carry) Seatbelt cutter (thumb stud...HKP-21349$239.95 -
HK VP9 Magazine - 25 Round – Red Cerakote
HKP HK Parts / Heckler & Koch
$89.95H&K / HKP 25 Round HK VP9 Magazine – Red Cerakote HKPARTS +10 alloy magazine extension coupled with an HK 15 round factory German magazine adds 10 additional rounds total for a fully assembled 25 round HK VP9/P30 magazine. Ideal for competitive...HKP-20896$89.95 -
HK SL8 Trigger Return Elbow Spring
H&K Heckler & Koch
$9.99HK SL8 Trigger Return Elbow Spring This is the lighter spring weight found only in the SL8 firearms. The G36 trigger return spring is much heavier in weight and thus has a heavier trigger pull over the SL8 trigger pull.HKP-16391$9.99 -
On Sale
Laserguard HK VP9, VP9SK, VP40 LG-499 - Green
Crimson Trace
Now: $256.95Was: $309.95LG-499 LASERGUARD VP9, VP9SK, VP40 - Green The LG-499G Laserguard® is a powerful green laser sight designed for the Heckler & Koch® (HK®) VP series of pistols including: VP9, VP9SK and VP40. Featuring a 5mWpeak, 515-532nm, Class 3R green...HKP-18567Now: $256.95Was: $309.95 -
HK P30 Tactical Barrel - 9mm - 4.45" - Threaded 13.5x1 LH
RCM
$225.00RCM HK P30 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK P30 9mm pistol,...HKP-16238$225.00 -
HK416, MR556, HK417, MR762 Tactical Deluxe Grip with Palm Shelf - OD Green
Ergo
$59.95Ergo Tactical Deluxe Grip w/ Palm Shelf - OD Green The Tactical Deluxe with Palm Shelf is the same size and shape as the Tactical Deluxe grip but has the addition of an adjustable palm shelf to support your firing hand. This grip excels on precision...HKP-19981$59.95