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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Out Of Stock
HK PSG1, MSG90 Handguard
H&K Heckler & Koch
$0.00HK German PSG1, MSG90 Forearm New HK German & Hard To Find. Perfect For The PSG1, MSG90 Conversions. We have many other PSG1 items available such as the PSG1 cocking tube, trigger group, stock etc...HKP-00529$0.00 -
Out Of Stock
HK MSG90 Trigger Housing - 2 Position 0,1 Pictogram - Clipped and Pinned
H&K Heckler & Koch
$0.00H&K MSG90 (7.62x.51/.308) 2 Position (0,1 Pictogram) Trigger Housing - Clipped & Pinned This clipped and pinned semi-auto trigger housing is designed for the MSG-90 rifle. It is compatible with...HKP-00539$0.00 -
HK91, G3 Caliber Conversion Kit - .22LR - USED
H&K Heckler & Koch
$1,497.95Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - USED SOLD AS IS. NO RETURNS. Convert any HK91 or HK G3 rifle to cycle .22LR ammunition with this genuine HK caliber conversion kit. This kiHKP-01147$1,497.95 -
On Sale
HK33, HK93, PSG1 Match Barrel - 5.56 / .223 - 26"- MSG90 Style
HKP HK Parts
Now: $449.96Was: $499.95HK PSG-1, MSG-90 Style 5.56, .223 HK 93, HK 33 Match Barrel: This is the finest PSG1 barrel you can get for your custom HK93, SG1, PSG1 style build in 5.56. Built on trusted tooling to HK...HKP-17008Now: $449.96Was: $499.95 -
On Sale
HK33, HK53, HK93 Trigger Group - 4 Position 0,1,3,F - Complete
H&K Heckler & Koch
Now: $2,989.95Was: $3,399.95Heckler and Koch HK33, HK53, HK93 4 Position Burst Trigger Group Complete (0,1,3,F) Factory German HK 4-position burst trigger group configured for push-pin style receivers. This complete assembly...HKP-00018Now: $2,989.95Was: $3,399.95 -
On Sale
HK MP5K Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
HKP HK Parts
Now: $149.96Was: $299.95HK MP5K .40 S&W 3-Lug Barrel with Thread Protector - Threaded 9/16x24 3-lugged Barrel with a 9/16x24 thread protector. Specifications:HKP-02318Now: $149.96Was: $299.95 -
Out Of Stock
HK MP5 Trigger Group - 2 Position 0,1 Safe Semi Only - Clipped and Pinned - .40 S&W, 10mm
HKP HK Parts
$529.95MP5 40/10 Trigger Group 2 Position Housing 0,1- Safe, Semi Only Finally a lower cost alternative to the spendy & rare all-German HK FBI or 0,1 ambidextrous trigger group in a 2 position factory...HKP-17248$529.95 -
Out Of Stock
HK MP5 Trigger Housing - 4 Position 0,1,3,F Pictogram - Clipped and Pinned - .40 S&W, 10mm
H&K Heckler & Koch
$0.00H&K MP5 40/10 4 Position (0,1,3,F Pictogram) Trigger Housing - Clipped & Pinned This trigger housing features (0,1,3,F) pictogram markings and is specifically designed for the HK MP5 40/10 series...HKP-02129$0.00 -
HK MP5K Bolt Group - Complete - Full Auto - 9mm
H&K Heckler & Koch
$2,974.95MP5K Full Auto Bolt Group "F" Style Complete - German Each factory HK MP5K bolt group includes the following: MP5K F/A - F style bolt carrier F style bolt headHKP-00384$2,974.95 -
HK MP5 A3 Buttstock Fork Section with Buttpad
H&K Heckler & Koch
$429.95H&K MP5 A3 Stock Fork Section With Buttpad A common repair item as the buttpad can crack or break off with time or hard use. A hard-to-find item, available here at HK Parts. For use with new style A3...HKP-01044$429.95 -
On Sale
Harris Bipod Mount - KeyMod Handguard
Ergo
Now: $7.46Was: $38.95Ergo Harris Bipod Mount - KeyMod Handguard Features: KeyMod Bipod Mount Black anodizHKP-17874Now: $7.46Was: $38.95 -
On Sale
CZ Scorpion Binary Trigger - Curved - BFSIII
FA Franklin Armory
Now: $449.99Was: $495.95Franklin Armory CZ Scorpion - BFSIII - Binary Trigger The BFSIII for CZ Scorpion is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest...HKP-18881Now: $449.99Was: $495.95