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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AR-15 Buffer Tube - Mil-Spec
HKP HK Parts
$29.95Mil-Spec US-Made Buffer Tube Compatible With: All AR-15 style platforms Not correct length for HK rifles Features: Made from T7 7075 aircraft grade aluminum 6-position Made in the USA Each features a highly polished inside tube Black mil-spec triple...HKP-02727$29.95 -
HK P7 Series Pistol Grip Screw
H&K Heckler & Koch
$8.95H&K HK P7 Series Grip Screw HK German P7 series factory grip screw for the left or right side grip. The grip screw commonly strips out or can lose it's new finish with use. This part is a great spare to have on hand. Compatible...HKP-01229$8.95 -
HK P7 Series Cylinder Cleaning Brush
H&K Heckler & Koch
$14.95HK German P7 Series Cylinder Cleaning Brush Made by HK to make cleaning your P7 easier. A must-have for all P7 owners.HKP-00795$14.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip with Storage - RAL8000
H&K Heckler & Koch
$49.95HK Heckler and Koch's Pistol Grip for HK416, HK MR556, HK417, HK MR762, and G28. New HK German V7 factory pistol grip with storage compartment in the bottom of the grip. Superior fit and feel to any other grip on the market. HK has hit a home run...HKP-17659$49.95 -
HK VP9 Magazine Locking Plate - 17 Round
H&K Heckler & Koch
$8.95Magazine Locking Plate for 17 Round Magazine - HK VP9, P30 New HK German factory part. This is the locking plate for the bottom of the magazine spring on the newer VP9/P30 17 Round magazine.HKP-19322$8.95 -
On Sale
HK Contract 3 Point Sling - OD Green
H&K Heckler & Koch
Now: $39.71Was: $52.95HK Contract 3 Point Sling - OD Green HK contract 3 point sling NIW. This is the best valued HK 3 point sling available for the HK 90 series of firearms. HK Green in color.HKP-19184Now: $39.71Was: $52.95 -
HK MP5 A3 Retractable Buttstock Buffer
H&K Heckler & Koch
$27.95H&K Heckler and Koch A3 Buffer - Stock - Retractable Stock Buffer for HK MP5 These common wear items need to be replaced when they become yellow, brittle, and worn. Inspect your buffer for the following: discoloration, the buffer becomes hard and...HKP-00074$27.95 -
HK Contract 3 Point Sling - Black
H&K Heckler & Koch
$44.95HK Contract 3 Point Sling - Black German military surplus 3 point HK sling in like new condition. These slings are completely operational and a great value for the money.HKP-19186$44.95 -
HK MP5, MP5K Dual Magazine Clamp Bundle - 9mm
HKP HK Parts / KCI
$119.95KCI Dual Magazine Clamp Bundle - for 9mm HK MP5 The MP5, MP5K magazine grip or dual magazine clamp. Fits all 9mm MP5 or MP5K curved magazines. Holds two magazines together for ease of use and easy access to 2 magazines. Half the weight of the...HKP-20479$119.95 -
HK Semi Elbow Spring For Trigger Pack - Match Grade
HKP HK Parts
$3.74Match Grade Semi Auto Spacer Elbow Spring - USA Manufactured using the best isolated oil tempered, select spring steel available for match grade performance and the utmost longevity. For use on all HK semi auto trigger packs. A must have for those...HKP-18002$3.74 -
HK45C, P30, USP Compact Firing Pin Spring
H&K Heckler & Koch
$8.95HK P30/USPC/45C/P2000 Firing Pin Spring A must have spare replacement part to keep on hand and to swap out during pistol servicing. Compatible With: HK USP Compact 9mm HK USP Compact 40 & .357 HK USP Compact 45 HK P2000 Series HK P2000SK Series HK...HKP-01502$8.95 -
HK91, G3 Cocking Handle - Black Rubberized - Surplus
H&K Heckler & Koch
$24.95HK German HK G3 & HK 91 Rubberized Cocking Handle- Black Used German military surplus from G3 Military rifles. Last remaining units we have on hand. Each comes complete, black in color. Date coded. Made by HK for the German military. Compatible...HKP-17083$24.95