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 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 -
On Sale
HK MP5, SP5K Thread Protector - 9mm - 1/2x32 RH
H&K Heckler & Koch
Now: $32.95Was: $39.95H&K 9mm Thread Protector - Threaded 1/2x32 RH A great replacement item for lost or damaged thread protectors & caps. This part is compatible with all factory-spec MP5 Navy or MP5KN barrels. Specifications: Overall Length .610" Threaded 1/2x32...HKP-00108Now: $32.95Was: $39.95 -
HK Lever - Selector - 0,1 - Extended - Ambidextrous
H&K Heckler & Koch
$78.95HK German Left Side Ambidextrous EXTENDED (ESSL) FBI (0,1) Lever New German HK extended selector lever for the left side of all safe and semi-ambidextrous trigger packs SP5K. Compatible With: MP5, 94 MP5 clone and custom buildsHKP-00124$78.95 -
Thread Protector - 9mm - 13.5x1 LH - US
HKP HK Parts
$19.95HKP 9mm Thread Protector - Threaded 13.5x1 LH This threaded barrel protector fits all HK 9mm threaded barrels that are 13.5x1 metric LH twist. Specifications: Overall Length .45" Outside Diameter .62" Threaded 13.5x1 LH Compatible With: HK VP9,...HKP-22324$19.95 -
HK33, HK53, HK93, MP5 A2 Fixed Stock
H&K Heckler & Koch
$139.95H&K 93,33,53 and MP5 A2 Fixed Stock This H&K G3 stock section and buttpad combo is designed to enhance the functionality and comfort of your HK 93,53 and MP5 firearm. The stock section provides improved strength and stability, while the...HKP-21818-M$139.95 -
HK MP5, SP5 Binary Trigger Group – SEF Navy - BFSIII - 9mm
FA Franklin Armory
$899.95Franklin Armory - BFSIII HK-C1 – Binary Trigger Group – SEF Navy Housing SEF Navy style- HK binary trigger group Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger...HKP-19506-M$899.95 -
HK VP9, VP40 Grip Panel Left Side - Small
H&K Heckler & Koch
$17.95H&K VP9, VP40 Grip Panel Left Side - Small - Black New HK German manufactured. Left side size small perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK...HKP-16807$17.95 -
HK USP Barrel - 9mm - 4.25"
H&K Heckler & Koch
$270.95H&K USP 9mm Full-Size Barrel HK factory German HK cold hammer forged barrel. New date-coded and serialized barrel. Compatible With: USP 9mm USP 9mm TacticalHKP-01527$270.95 -
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 -
Meprolight HK USP C - Tru-Dot Night Sights - Green
Meprolight
$118.95Meprolight HK USP Compact - Tru-DotNight Sights - Green HK Factory OEM part: 701973 HK uses these as their OEM night sight. Features: Green Front & Green Rear Tritium Unequaled Light Performance Brightest Night Sights Available Today Used by...HKP-01908$118.95 -
HK416, MR556 Bolt Head Cam Pin
H&K Heckler & Koch
$31.95Heckler and Koch HK416 and HK MR556 Bolt Head Cam Pin New factory HK German manufactured cam pin for bolt group. A common wear and replacement item. Compatible With: HK 416, MR556 HK 416 A5 HK M27HKP-02539$31.95 -
HK91, G3 SEF Navy Style Trigger Group HK G3 - Used Excellent
H&K Heckler & Koch
$389.95H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Excellent HK factory German HK G3 & HK 91 Full Auto Trigger Group Complete. Pulled from German military HK G3 rifles. These work great as spares or for collectible items. Used in...HKP-18670$389.95