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 Locking Roller Pin - Bolt Head
H&K Heckler & Koch
$9.95HK Heckler & Koch HK Pin - Roller - Locking - Bolt Heads HK roller retainer pin or clamping sleeve (holds roller retainer plate in place). Each retainer pin works with all roller retainer plates &aHKP-00066$9.95 -
Out Of Stock
HK P9, P9S Recoil Buffer
HKP HK Parts
$19.95HK P9S Recoil Buffer Fits All 9mm & 45 P9 & P9S Models This is a must-have replacement item as the buffer will degrade and fall apart with use and age. Replacing the P9 buffer is the most common...HKP-01449$19.95 -
HK91, G3 Cocking Handle - Extended
HKP HK Parts
$64.95HKP HK91, G3 Extended Cocking Handle - Extended Extended cocking handle designed to improve grip and leverage on HK91 and G3 pattern firearms. The enlarged profile provides increased surface area...HKP-00199-M$64.95 -
Out Of StockOn Sale
HK MP5, AP5 Telescopic Stock
MKE
Now: $282.95Was: $314.95MKE HK MP5, AP5 Telescopic Stock The missing piece to add the iconic appearance to your MP5-AP5 Clone. The collapsible design offers a custom length of pull for optimal comfort and control, while...HKP-21183Now: $282.95Was: $314.95 -
Out Of Stock
HK P30, P2000 Short Reset System
Grayguns
$90.00Grayguns HK P30, P2000 Short Reset System Replicate Grayguns' custom in-house short reset conversion with a drop-in kit for your HK P2000 or P30 without a thumb safety. Cut from bar stock steel,...HKP-19755$90.00 -
HK MP5, SP5 A2 Fixed Buttstock
H&K Heckler & Koch
$183.95HK German MP5, SP5 & HK94 - A2 Fixed Buttstock Compatible With: HK MP5, 94, HK SP5 MP5SD MP5 FHKP-00169$183.95 -
Out Of Stock
HK VP9 Barrel or Thread Protector O-Ring - Green
H&K Heckler & Koch
$4.95HK German 9mm barrel O-ring - Green For thread protector or barrel slot on the Elite barrel. The o-ring is a high wear and replacement item. Stock up at the lowest price in the country. To save even...HKP-19729$4.95 -
HK91, G3, CETME Receiver Flat with Weldment Set
PTR
$189.95HK91, 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...HKP-02086$189.95 -
Out Of Stock
HK90 Series Front Sight Sling Loop
H&K Heckler & Koch
$59.95H&K Sling Loop For Front Sight Tower - 90s series This HK OEM item is brand new and not surplus or used. This is a must-have item for all of your re-barrel jobs, or for when you need to mount a sling...HKP-00144$59.95 -
HK P30 Series Light Trigger Return Spring
H&K Heckler & Koch
$7.95Light Trigger Return Spring This spring is a popular choice for those who opt for custom trigger pulls and spring conversions. It's also known as the "light" trigger return spring for the P30 series...HKP-01801$7.95 -
Out Of Stock
HK33, HK53, HK93 30 Round Magazine
AC-Unity
$19.95AC-Unity 30 Round HK33 Magazine The AC-Unity HK33 magazine is formed from an advanced polymer-resin/granulate that is lightweight and shock resistant. Metal parts are hardened and corrosion resistant...HKP-21636$19.95 -
HK91, G3, HK53, HK93 Cocking Lever Elbow Spring
H&K Heckler & Koch
$5.74New Style Cocking Handle Lever Spring - German This is the latest HK German spring design with the factory HK anti-corrosion plating applied. The factory HK springs last longer and is more tolerant...HKP-00348$5.74