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 MP5, MP5K Magazine - 15 Round - 9mm -
H&K Heckler & Koch
$85.95HK German MP5, MP5K, SP5, SP5K - 15 Round Magazine Brand new factory fresh German HK 15 round curved magazine. Each magazine is stamped 9X19mm and is a new HK German production. Compatible With: HK MP5, SP5 HK MP5K, SP5K HK SP89 HK94 Custom...HKP-02409$85.95 -
HK91, G3, PTR 20 Round Magazine
KCI
$28.95HK 91, G3, PTR .308 20 Round All Steel Magazine - KCI Designed to fit your G3, HK91, & PTR style firearms chambered in .308 and 7.62x51. This standard capacity 20-round magazine provides reliable and smooth feeding. Constructed of steel with a grey...HKP-19970$28.95 -
HK, Walther, Colt, .22LR O-Ring- Barrel Adapter
USA
$2.95Heckler and Koch, Walther, Colt, .22LR Barrel Adapter O-Ring Made from the highest quality and very durable Viton material. The O-ring on the adapter tear with use or become brittle over time. Be sure to grab a few extra rings with your adapter to ensure...HKP-17379$2.95 -
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...HKP-18008$1.95 -
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...HKP-20331-M$59.95 -
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...HKP-20739-M$199.95 - $239.95 -
On Sale
HK P30, P30S Compensator - Gen 2 - Rail Mount
HKP HK Parts
Now: $89.95Was: $189.95HK P30 - Rail Mount Compensator - Gen 2 Crafted from aircraft-grade billet aluminum and finished in durable Cerakote. It has a sleek design that flows with the lines of the Koch P30 for a seamless addition. It has 5 sets of ports to significantly reduce...HKP-19926Now: $89.95Was: $189.95 -
Out Of Stock
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,...HKP-01242$34.99 -
HK MP5, MP5K Extractor - 9mm - Enhanced
HKP HK Parts
$34.95HK MP5, MP5K 9mm Extractor - Latest Generation Style HK Parts offers the finest US made 9mm "F" type extractor for all HK MP5/94 bolt heads. CNC'd from a solid billet of ordnance grade steel for superior function & durability. Each 9mm extractor has...HKP-01968$34.95 -
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...HKP-20861-M$64.95 -
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...HKP-17429$149.95 -
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...HKP-00083$109.95