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
B&T Pistol Extractor Kit
B&T Brugger & Thomet
$55.00B&T Extractor Kit for B&T Pistol Caliber Firearms Factory B&T extractor kit for B&T pistol caliber firearms. This kit includes ciritical spare extractor components to keep your B&T running at the range or in the field...HKP-21741$55.00 -
Out Of Stock
B&T GHM9 SD Handguard
B&T Brugger & Thomet
$255.00B&T GHM9 SD Handguard Upgrade your GHM9 SD with this precision-engineered handguard from B&T, designed specifically for the integrally suppressed GHM9 SD platform. This handguard features M-LOK slots at the 3, 6, and 9 o’clock positions...HKP-21739$255.00 -
Out Of Stock
HK USP M.R.A Red Dot Adapter
Outer Impact
$59.95Outer Impact HK USP M.R.A Red Dot Adapter The Outer Impact USP red dot adapter opens up a variety of sight options for the USP platform. Precision-machined from 7075 aircraft aluminum. Compatible With: USP Compatible Red Dot Sights (Mounting Screws...HKP-21624$59.95 -
On Sale
HK USC Stock Block to Picatinny Rail
HKP HK Parts
Now: $119.96Was: $149.95HKP HK USC Stock Block to Picatinny Rail The HKP USC stock block with picatinny rail offers superior adjustability for the stock of your choice. Each stock block is crafted from billet aluminum, cerakoted for a robust finish, and includes the sling pin...HKP-21594-MNow: $119.96Was: $149.95 -
Out Of Stock
HK MP5 to MP5SD Front End Conversion Kit
DTAC Dakota Tactical
$1,299.95Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further. Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...HKP-21318$1,299.95 -
On Sale
Sig P320 +3 Magazine Extension
Tactical Precision MFG
Now: $19.95Was: $44.95TPM Sig P320 +3 Magazine Extension This extension is made from machined 6061 aluminum. This magazine extension will increase the capacity, reload speed, mag drops, and overall functionality of your pistol. Available in various colors to customize to your...HKP-21133-MNow: $19.95Was: $44.95 -
On Sale
HK VP9 Rail Mount Compensator - OD Green
HKP HK Parts
Now: $134.95Was: $169.95HKP HK VP9 Rail Mount Compensator - OD Green *DO NOT USE COMPENSATOR WITH A THREAD PROTECTOR INSTALLED ON THE BARREL. Doing so will result in damage to your firearm and compensator.* Specifications: Length - 4 1/4 inches Height - 2 1/2...HKP-20987Now: $134.95Was: $169.95 -
HK91, G3 Backplate, Incomplete
H&K Heckler & Koch
$29.95G3 Incomplete Backplate Each backplate is refinished and parkerized as issued to the German military. This refinished backplate comes with a threaded end to accept a threaded recoil rod stop screw. With a quick and easy removable recoil rod stop you will...HKP-20860$29.95 -
On Sale
HK MP5, MP5K Flash Hider - 3-Lug - Titanium - 9mm
HKP HK Parts
Now: $111.95Was: $139.95HKP MP5 9mm Titanium Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found...HKP-20223Now: $111.95Was: $139.95 -
On Sale
HK USP Magazine Pouch - Single - PLM
Comp-Tac
Now: $35.95Was: $45.95Single Magazine Pouch - PLM The Single Magazine Pouch - PLM is an all Kydex® magazine pouch which gives a smooth friction free surface perfect for a quick reload. The Single Magazine Pouch- PLM attaches to the belt with a Push-Button Locking...HKP-19855Now: $35.95Was: $45.95 -
HK G36C Handguard
H&K Heckler & Koch
$139.95HK German G36C Handguard With Heat Shield & Hand Stop Each unit features the hand stop locations for adding rails to the left, right, and bottom should you choose to. Compatible With: HK G36C HK SL8-G36C conversionsHKP-00620$139.95 -
HK VP40 Right Side Charging Support
H&K Heckler & Koch
$4.95H&K HK VP40 Right Side Charging Support - Black Compatible With: HK VP40 NOT for use with the VP9HKP-17685$4.95