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 VP9, P30 Magazine Extension Kit - +4
HKP HK Parts
$34.95HKP +4 HK VP9/P30 Magazine Extension Kit HK Parts magazine extension +4 kit adds 4 additional rounds to the HK VP9/P30 magazine with the simple swap of the floor plate and the included high...HKP-17589$34.95 -
HK90 Series Trigger
H&K Heckler & Koch
$19.95H&K 90 Series Trigger New German 90 series Compatible With: HK91, G3, PTR HK93, 33, 53HKP-18706$19.95 -
HK416, MR556, AR-15 Magazine - PMAG M3 - 40 Round
Magpul
$24.95Magpul PMAG 40 Round AR-15 5.56/.223 Magazine Latest M3 generation, NON-windowed PMAG (Polymer Magazine). Featuring a pop-off storage/dust cover that alleviates pressure from the magazine feed lips,...HKP-16699$24.95 -
On Sale
Thread Protector - .40 S&W - Tactical Barrels - 14.5x1 LH
HKP HK Parts
Now: $10.10Was: $17.95HK VP40, P2000, USP40, P30 Thread Protector - Threaded 14.5x1 LH - .40 S&W HKP tactical thread protector for HK .40 S&W barrels threaded 14.5x1 LH. Designed as the correct thread protector for HK...HKP-99502Now: $10.10Was: $17.95 -
HK91, G3 Lower, Complete - SEF Full Auto - Surplus
H&K Heckler & Koch
$369.95Heckler and Koch German Surplus Complete Lower with the Black Grip for HK G3 HK G3 SEF Steel Lower Complete. Each lower includes a full auto completeHKP-17653$369.95 -
On Sale
HK91, G3, MP5 Ambidextrous Selector Lever - Right Side - Low Profile
HKP HK Parts
Now: $34.95Was: $39.95Low Profile, No Contact - Ambidextrous Selector Lever - Right Side This is the right side selector of the ambidextrous trigger packs that is low profile and does not interfere with the hand when the...HKP-17898Now: $34.95Was: $39.95 -
HK53 Locking Piece #3 - 58 Degree
RCM
$49.99RCM HK 53 Locking Piece #3 - 58 Degree This is the proper locking piece for the HK33K and HK53 firearms as well as some HK51 builds.HKP-02523$49.99 -
On Sale
HK MP5, 90 Series Locking Plate for Rollers
USA
Now: $2.96Was: $8.95Special Weapons HK MP5, 90 Series Locking Plate for Rollers SOLD INDIVIDUALLY This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with...HKP-99399Now: $2.96Was: $8.95 -
B&T GHM9 Stock or Brace Adapter - Telescopic
B&T Brugger & Thomet
$510.00B&T GHM9 Telescopic Brace/Stock Adapter Switzerland manufactured telescopic brace adaptor for Gearhead Works Tailhook MOD 1. Tailhook is not included. ***Stabilizing braces sold by HK Parts are...HKP-18946$510.00 -
HK MP5 Receiver Flat- 9mm
LSC
$239.95MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for...HKP-01431$239.95 -
HK VP9, P40 Backstrap - Small
H&K Heckler & Koch
$29.95Heckler and Koch Small Black Backstrap for HK VP9, HK VP40 New HK German manufacture. Compatible With: VP9HKP-16814$29.95 -
HK Pistol Field Cleaning Kit - .45 ACP
H&K Heckler & Koch
$69.95H&K HK .45 ACP Pistol Field Cleaning Kit This is a genuine HK factory cleaning kit and is recommended by HK for all HK pistol owners. CompaHKP-01245$69.95