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 MP5K 9mm SEF Trigger Group Navy Style- Full Auto - Push Pin - Used
H&K Heckler & Koch
$499.95HK German MP5K SEF Navy Style F/A Trigger Group Complete - Used ON SALE FOR A SPECIAL PROMOTION WHILE SUPPLIES LAST!!! Each trigger group is comprised of genuine Heckler & Koch products Includes:HKP-18095-PP$499.95 -
On Sale
HK P30 Magwell - EDC
HKP HK Parts
$38.22 - $59.95EDC Tactical Magwell - HK P30 - Magwell Our EDC magwell was redesigned for a much faster and reliable mag reloads. With a increased funnel area, the EDC magwell consistently guides you to the correct...HKP-21429-M$38.22 - $59.95 -
HK45, HK45C, USP Roll Pin - Ambi Control Lever
H&K Heckler & Koch
$2.95Heckler and Koch HK USP, HK45, and HK45C Ambidextrous Control Lever Set Roll Pin This item is to hold the right side lever onto the left side axle lever. These can easily be lost or damaged...HKP-02394$2.95 -
HK416, MR556 E1 Buttstock - Mil-Spec German
H&K Heckler & Koch
$224.95H&K Heckler and Koch Mil-Spec German E1 Stock for HK416 and HK MR556 The HK E1 Buttstock fits mil-spec buffer tubes (receiver extensions) for M4, AR15-type weapons. Each stock comesHKP-00052$224.95 -
HK MP5 Handguard - Wide
AC-Unity
$18.95AC-Unity HK MP5 Wide Handguard Made by AC-Unity with advanced, German made polymer-resin/granulate that is both lightweight and shock/UV resistant. This state of the art polymer is formulated to...HKP-21637$18.95 -
HK G3K Locking Piece #18 - 50 Degree
RCM
$49.95RCM HK G3K Locking Piece #18 - 50 Degree The #18 LP is the factory-correct locking piece for G3K style builds or other custom builds. The locking piece is the timing mechanism that a delayed roller...HKP-02522$49.95 -
HK MP5K, SP89 Locking Piece - 110 Degree - 9mm
RCM
$33.95MP5K, SP89 Locking Piece - 110 Degree - RCM US-Made Locking Piece. Made from ordnance grade steel, heat treated, and made to last by RCM. HK no longer makes the 110-degree locking piece as they use...HKP-01465$33.95 -
Thread Protector - 9mm, 5.56 / .223 - 1/2x28 RH
HKP HK Parts
$14.95HKP (9mm) Thread Protector For Barrels - Threaded 1/2x28 A must-have accessory to safeguard the threads on your threaded barrel, this thread protector is the finest available. It is the standard...HKP-02646$14.95 -
Out Of Stock
HK VP Series F3 Trigger - Full Flat Face - Red
Lazy Wolf
$134.95Lazy Wolf VP F3 Full Flat Face Series Trigger - Red In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger...HKP-19153$134.95 -
HK MP5 Ejector Lever - .40 S&W, 10mm
H&K Heckler & Koch
$38.74H&K Heckler and Koch German HK MP5 40, MP5 10mm Ejector Lever Get the ejector that is tried and true and the best upgrade you can make with your HK MP5 40 or 10mm. This is the finest and only ejector...HKP-00412$38.74 -
Selector Lever Set - Ambi 0,1 - Extended Left Side
HKP HK Parts
$99.95Left Side Extended & Standard Right Side Ambidextrous Selector Lever Set- 0,1 New for the US market is a pair of ambi selector levers for use ambidextrous 9X series trigger packs and trigger groups...HKP-17229$99.95 -
HKP .40 S&W Vented Micro Comp - Threaded 9/16x24 RH
HKP HK Parts
$29.95HKP .40 S&W Vented Micro Comp - Threaded 9/16x24 RH The HK Parts Micro Comp & Thread Protector is a lightweight, dual function device that serves as both a compensator and thread protector. It easily...HKP-19957$29.95