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 SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED
H&K Heckler & Koch
$89.95H&K SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED In used but good condition. It will have some nicks but overall this house is in good working condition. For use with SEF style trigger packs. This will not work with...HKP-19488$89.95 -
Out Of Stock
Hi-Viz HK VP9, HK P30, HK 45 LiteWave H3 Tritium/Litepipe Night Sights
Hi-Viz
$125.00Hi-Viz, LiteWave H3 Tritium/Litepipe Night Sights, Fits HK VP9, VP9SK, VP40, HK45, HK45C, P30, P30L, Green Front With White Front Ring, Orange Rear New! LiteWave H3(TM) sight combines Tritium with the HIVIZ Litepipe technology for 24 illumination. Now...HKP-19435$125.00 -
HK45 Compact Hammer Spring
H&K Heckler & Koch
$10.95Hammer Spring For HK45 Compact This part is shorter than the HK45 hammer spring and is used on the HK45C only.HKP-01805$10.95 -
HK P30L Conversion Barrel - .40 S&W To .357 SIG - Non-Threaded
RCM
$237.50RCM HK P30L .40 S&W To .357 SIG Conversion Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded barrel for the HK P30L .40...HKP-17568$237.50 -
HK45 Series, P30 Series Grip Pin - Cylindrical
H&K Heckler & Koch
$5.95H&K P30 & 45 Series Cylindrical Grip Pin Compatible With: HK 45 HK 45 Compact HK P30 HK P30 V2 HK P30 V3 HK P30L HK P30L V2 HK P30L V3HKP-01808$5.95 -
HK P30/L/S Backstrap - Small - Black
H&K Heckler & Koch
$29.95H&K P30/L/S Backstrap - Small - Black New HK German manufactured. Compatible With: P30 9mm and .40 cal P30L 9mm and .40 cal P30S 9mm and .40 calHKP-01571$29.95 -
Out Of Stock
HK45 Thread Protector - .578x28 RH - Knurled
HKP HK Parts
$14.95HKP HK Parts HK45 Thread Protector - Threaded .578x28 RH - .45 ACP The new US-made .45 ACP tactical thread protector, the cap fits all HK45 full size & compact barrels threaded .578x28 RH thread. A must-have item to protect your threaded barrels,...HKP-17623$14.95 -
HK USP, USP Compact Lock Out Key
H&K Heckler & Koch
$9.95HK USP & USPC Lock Out Key A great spare that fits all USP & USPC models and variants.HKP-01409$9.95 -
Out Of Stock
HK33, HK93 Handguard - M-LOK
MI Midwest Industries
$175.95MI HK93/33 M-LOK Handguard Brand new Midwest Industries M-LOK handguard for your HK93, HK33, G3K or similar clone. This is also the correct forearm to use on PTR models that use a shorter 9" length or carbine length forearm. Features: Made in the USA,...HKP-18440$175.95 -
HK416, MR556, HK417, MR762, G28 Pistol Grip - PSG1 Sniper Style - RAL8000
H&K Heckler & Koch
$129.95H&K HK MR556/MR762/416/417/G28 Sniper PSG1 Style Grip - RAL 8000 HK German PSG1 style sniper factory. Each grip will fit all AR-15/M-16 lower receivers as well. Superior fit & feel to any other grip on the market. HK has hit a home run with their...HKP-17693$129.95 -
HK416 Compensator Flash Hider - Threaded 1/2x28
H&K Heckler & Koch
$39.95Heckler and Koch 5.56 / .223 Compensator Flash Hider - Threaded 1/2x28 Threaded 1/2x28 for use on all HK416, MR556 and other AR style applications. Compatible With: HK416, MR556, MR223 HK G36, SL8 B&T APC223 AR-15/M16 HK Firearms 5.56 / .223...HKP-16926$39.95 -
HK MP5 Extractor - .40 S&W / 10mm - .357 SIG
H&K Heckler & Koch
$69.95New HK MP5 40/10/.357 Latest Production 1.4mm Extractor This is the latest and greatest upgraded extractor made by HK. This is also a great upgrade for the many out-of-spec clones out there. Compatible With: MP5 40 MP5 10 MP5 .357HKP-00410$69.95