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 VP40 Conversion Barrel - .40 S&W to .357 SIG - Non-Threaded
RCM
$237.50RCM HK VP40 .40 S&W To .357 SIG Conversion Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest barrel for the HK VP40...HKP-17373$237.50 -
Out Of Stock
HK MP5, HK94 Folding Stock With Adapter - UMP Style
USA
$249.95HK MP5, HK94 Folding Stock With Adapter - UMP Style New US UMP style folding stock assembled with our own HK Parts stock adapter. Our HK Parts stock adapter was made from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment...HKP-20215$249.95 -
HK 2 Round HK SLB 2000 30-06 Magazine
H&K Heckler & Koch
$29.95HK SLB 2000 30-06 2 Round MagHKP-16997$29.95 -
HK VP9, P30, HK45C HD Night Sight Set - Yellow
Trijicon
$169.95Trijicon HK VP, P30, HK45C HD Night Sight Set - Yellow The HD Night Sights were specifically created to address the needs of tactical shooters. The three-dot green tritium night sight set front sight features a taller blade and an aiming point ringed in...HKP-14558$169.95 -
HK USP Slide Release Lever
H&K Heckler & Koch
$59.95HK USP Slide Release Lever Compatible With All USP Full Size Pistols & All USP Full Size Variants Below: USP 45 USP 40 USP 9mm USP Tactical (all calibers) USP Expert (all calibers) USP Elite (all calibers)HKP-01674$59.95 -
X300 Tactical Light - Ultra LED
Surefire
$341.95Surefire X300 Ultra - LED Tactical Light Specifications: High-efficiency LED that generates 1000 lumens of brilliant white light Good reach and significant surround light for peripheral vision No filament to burn out or break with LED lights Generates...HKP-13486$341.95 -
Out Of Stock
HK416, MR556 E1 Buttstock - Factory - Commercial
H&K Heckler & Koch
$199.95H&K HK MR556/416 Commercial Factory E1 Stock HK 416 factory German E1 Stock latest HK German stock for all HK 416/MR556 rifles. This HK 416 HKE1 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons. NO LONGER OFFERED...HKP-15426$199.95 -
HK USC Magazine Release
H&K Heckler & Koch
$19.95Heckler and Koch .45 ACP Carbine Magazine Release for HK USC This is a great replacement as they are prone to breakage and wear. Please Note: For those that have a HK USC with a bullet button and are moving to a free state and want to revert back to the...HKP-02196$19.95 -
HK21E, HK11E Extractor Spring
H&K Heckler & Koch
$24.95HK21E & 11E Factory Extractor Spring Made by HK Germany for all HK21E's and 11E's.HKP-00815$24.95 -
HK Selector Catch Lever - Ambi Trigger Packs
H&K Heckler & Koch
$26.95HK German Ambidextrous Trigger Pack Axle Catch Lever This is the lever that allows you to take apart any of the ambidextrous trigger packs. This lever takes the spring tension off the left and right side selector levers, allowing you to remove and...HKP-01636$26.95 -
Out Of Stock
B&T NATO A2 to HUB Suppressor Adapter - Gen 2
B&T Brugger & Thomet
$250.00B&T NATO A2 to HUB Suppressor Adapter - Gen 2 Stainless steel adapter that connects NATO-spec A2 flash hiders to any 1.375x24 TPI HUB-compatible suppressor. Features a gate lock and ratchet system for secure, repeatable mounting—used by NATO...HKP-21723$250.00 -
B&T Official PVC Patch - Black
B&T Brugger & Thomet
$5.00B&T Official PVC Patch - Black - 2.5"HKP-21718$5.00