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 MP5, MP5K Locking Piece - 100 Degree
HKP HK Parts
$33.95HKP MP5, HK94 & MP5K 100 Degree Locking Piece Each 100 degree MP5 locking piece is the proper, correct locking piece for all HK MP5, 94 and full size clones as well as this is now the correct locking piece for all HK MP5K & MP5K-PDW variants, per...HKP-18049$33.95 -
HK P2000 Straight Trigger
Grayguns
$95.00Grayguns HK P2000 Straight Trigger Designed by Keith Hosey, Grayguns’ director of gunsmithing, the HK P2000 Straight Trigger is a first-of-its-kind in the market. The trigger reduces over-travel while featuring a 90-degree optimal trigger...HKP-21071$95.00 -
HK VP9, HK45 Series Extractor Spring
H&K Heckler & Koch
$5.95HK VP9/45/P Series Extractor Spring A must-have repair and replacement part and a recommended part to change out when doing routine maintenance on your HK pistol. Compatible With: HK45 HK45C HK P30/P30L HK P30SK HK P2000 HK P2000SK HK VP9 HK VP9A1 F HK...HKP-01501$5.95 -
HK 3 Point Factory Sling
H&K Heckler & Koch
$69.95H&K 3 Point Factory Sling New HK German 3 point factory sling HK Black. Can be used as a 2 point or 3 point sling on your HK rifle. This sling is the factory HK issued sling. Never before offered as the 3 point slings have always been traditionally...HKP-18428$69.95 -
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 -
HK German Roller +2 - Used - 8.02mm
H&K Heckler & Koch
$7.95H&K German Roller +2 - Used - 8.02mm Used HK standard (8.02 mm) locking roller. The proper roller size is essential for proper bolt gap. HK German Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...HKP-19366$7.95 -
HK45 Magazine - 13 Round - .45 ACP
HKP HK Parts
$104.95HKP 13 Round HK 45/45 Tactical .45 ACP Magazine HK45 & HK45 Tactical +3 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a 13 round HK45, HK45 Tactical magazine. Ideal for concealed carry,...HKP-18387$104.95 -
HK21 Ammunition Belt without Starter Tab - 50 Round
H&K Heckler & Koch
$29.95H&K 21 50-Round Ammo Belt w/o Starter Tab No starter tab. For belt-fed HK 21 guns.HKP-00569$29.95 -
HK USP, Mark 23 Magazine Follower - .45 ACP - Heckler and Koch
H&K Heckler & Koch
$9.95USP .45 & Mark 23 SOCOM Magazine Follower A great spare to have on hand as this is a wear and replacement item. Compatible With: HK USP 45 ACP 10 Round HK USP 45 ACP 12 Round HK USP .45 Tactical, Elite, Expert HK Mark 23 10 Round HK Mark 23 12...HKP-01586-M$9.95 -
HK CC9 Magazine - Extended Pinky Rest - 15 Round
HKP HK Parts
$79.95HKP CC9 15 Round 9mm Complete Magazine w/ Extended Pinky Rest Factory German 12‑round CC9 magazine fitted with an HK Parts +3 extended pinky rest. Available exclusively at HK Parts. Features: Drop‑in, fully assembled and ready to use Improves grip and...HKP-22369-M$79.95 -
HK VP40, VP40T, P30, P30L, P30S Magazine - .40 ACP - 18 Round
HKP HK Parts
$79.9518 Round HK VP40/Tactical, HK P30/L/S .40 Cal Magazine Each mag comes fully assembled and ready for use. HK Parts take an existing 13 round mag the +5 mag extension and assembles them into a working 18 round mag. Each unit comes as a completely assembled...HKP-18187$79.95 -
HK91, G3, HK33, HK53, HK93 Cocking Handle Spring
HKP HK Parts
$3.95HKP Cocking Handle Spring The cocking handle spring is a medium wear component and should be replaced intermittently. Grab a spare to keep with your maintenance gear in case of failure in the field too. Compatible With: HK G3, 91,...HKP-02465$3.95