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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MP5, MP5K Replacement Parts Kit
MKE
$24.95MKE Replacement Parts Kit for your HK MP5 and HK MP5K Firearm Keep your MP5 or MP5K in peak condition with this comprehensive MKE HK MP5/MP5K replacement parts kit. Manufactured to exacting standards by MKE, this kit includes high-quality replacement...$24.95 -
HK VP9, VP40 Tactical Magwell - EDC
HKP HK Parts
$59.95HKP HK VP9 & VP40 EDC Tactical Magwell Our newest and greatest EDC magwell was redesigned for a much faster and reliable mag reloads. With a much greater funneled area it guides you to the correct position every time resulting in a no-look magazine...$59.95 -
Out Of Stock
HK MP5, MP5K Dual Magazine Clamp - 9mm - H&K
H&K Heckler & Koch
$109.95HK German MP5, MP5K, SP5, SP5K 9mm Dual Magazine Clamp Genuine HK dual magazine clamp for twice the rounds exactly where you need them. This is also a great way to swap between two different types of ammo, like FMJ and JHPs or super and subsonic...$109.95 -
HK MP5, HK94, MP5K Locking Piece - 100 Degree
RCM
$34.99RCM MP5, HK94 & MP5K 100 Degree Locking Piece Each 100-degree MP5 locking piece is the proper, correct locking piece for all HK MP5, HK94 and full-size clones as well as this is now the correct locking piece for all HK MP5K & MP5K-PDW variants,...$34.99 -
Out Of Stock
HK MP5 Handguard - .22LR - M-LOK
HKP HK Parts
$99.95HKP HK MP5 .22LR M-LOK Handguard The M-LOK tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required, a true drop in option. Features: Made in the USA CNC machined from aircraft grade billet...$99.95 -
HK 20 Round HK VP9 Magazine
H&K Heckler & Koch
$64.95H&K 20 Round HK VP9 Magazine New HK German manufactured & factory fresh production. Each factory HK magazine holds 20 rounds for use in all VP9, P30, P30L, P30S 9mm Models. Each magazine is marked with the factory 20 round witness holes...$64.95 -
HK MP5, HK94, SP5 Handguard - Extended - M-LOK, Picatinny Rails
UTG PRO
$199.95 - $239.95UTG HK MP5 PRO Handguard with Extended Upper Picatinny Mount - M-LOK Made in the USA. Compatible With: HK MP5 HK94 SP5 AP5 MAC-5 clones may require custom fitment. Modified components are not eligible for return. In-spec clones & custom...$199.95 - $239.95 -
Out Of StockOn Sale
HK91, G3, CETME Receiver Flat with Weldment Set
PTR
Now: $150.25Was: $166.95HK91, G3, PTR, CETME Flat & Weldment Combo - PTR Made by PTR91 on original HK tooling using factory specifications and a properly stamped receiver ready to roll and build. No FFL transfer is required as this is an un-folded flat. Compatible...Now: $150.25Was: $166.95 -
HK MP5K Vertical Foregrip - 3 Slot Rail Section
HKP HK Parts / Magpul
$69.95HKP, Magpul MP5K VFG w/Rail Section - 3 Slots New VFG for the MP5K platform is now M-LOK compatible and comes with a Magpul Aluminum 3 slot rail. The perfect combination to install lights or lasers. M-LOK slots are integrated on both sides to make it a...$69.95 -
HK MP5, HK94 Case Deflector Rivet - US
HKP HK Parts
$1.95HKP MP5, HK94 Case Deflector Rivet Each case deflector will require 2 rivets to attach the case deflector to the receiver or flat. If you want the factory look and feel of doing it right these rivets are a must. These are a factory correct rivet that...$1.95 -
HK UMP, USC Picatinny Rail Set - 4 Piece
HKP HK Parts
$149.95HK UMP, USC Rail Set Complete A complete set of rails for your HK UMP/USC featuring an extended top rail for mounting your optic of choice. The rails are scratch resistant, class 3 mil-spec hard coat anodized. Each set includes the top rail, all 3 side...$149.95 -
HK MP5 Handguard - Wide - M-LOK
HKP HK Parts
$49.95HKP HK MP5 M-LOK Wide Forearm MP5 Wide handguard with M-LOK slots to quickly and easily attach any M-LOK style accessory. This is a great option for those that want to keep a factory MP5 look and still have the ability to add vertical grips,...$49.95