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 MP5, HK94, SP89, SP5K Magazine Floorplate - 9mm
H&K Heckler & Koch
$10.95HK MP5, 94, MP5K, & SP-89 9mm Magazine Floor Plate - German HK New HK German manufacture. It will fit all HK MP5/MP5K magazines.HKP-01051$10.95 -
HK VP9 Trigger Return Spring for Ultra Match Trigger
HKP HK Parts
$9.95HKP HK VP9 Ultra Match Trigger Return Spring Ultra Match trigger return spring will give your VP9 and VP40 an even smoother, crisper, and lighter pull. This helps promote consistent match-grade accuracy and control by dropping the trigger pull...HKP-21164$9.95 -
HK MP5K Bolt Group - Complete - 9mm - SA/FA
RCM
$394.95Complete Bolt Group - RCM - HK Style MP5K 9mm Ideal to replace out of spec, worn or broken bolt groups or for that custom build. Each bolt group is compatible with semi and full-auto MP5K 9mm style firearms. Each bolt group comes complete,...HKP-19846$394.95 -
HK P7 Series Extractor Spring
H&K Heckler & Koch
$7.95HK P7 Extractor Spring This is a common wear and replacement part, according to HK Germany. This is a great part to have on hand as a spare. Compatible With: P7 PSP P7 M8 P7 M10 P7 M13HKP-00325$7.95 -
Out Of Stock
HK416, MR556 Bench Mat
HKP HK Parts
$24.95HK MR556, HK 416 Bench Mat Our HK MR556, HK416 bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch MR556 & HK416 models. Have fun and learn while you work on your favorite H&K firearm. The soft top...HKP-17169$24.95 -
HK91, G3 Grip Housing - SEF - Clipped and Pinned- Polymer - USED
H&K Heckler & Koch
$79.95H&K G3/91 (7.62x51/.308) SEF Polymer Housing - USED - Clipped & Pinned This German made Heckler & Koch G3 surplus grip housing comes in black polymer clipped & pinned, ready to drop on your HK 91, HK G3, PTR-91, or other HK .308 type...HKP-00722$79.95 -
On Sale
HK VP9, P30L Dynamic Pistol Rest - BLEMISHED
Other
Now: $89.95Was: $199.95USA 1Shot GS Dynamic Pistol Rest for HK VP9 and HK P30 Series Pistols - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Features: Not permanently...HKP-20525-BL-BNow: $89.95Was: $199.95 -
HKP .40 S&W Vented Micro Comp - Threaded 9/16x24 RH
HKP HK Parts
$29.95HKP .40 S&W Vented Micro Comp - Threaded 9/16x24 RH The HK Parts Micro Comp & Thread Protector is a lightweight, dual function device that serves as both a compensator and thread protector. It easily attaches to any factory spec 9/16x24 .40...HKP-19957$29.95 -
Out Of Stock
HK45C Finger Rest Magazine Extension - +2
HKP HK Parts
$29.95HK45C 8 Round Magazine +2 Magazine Extension/Finger Rest All of the HK .45 cal mags will soon have a variety of mag extensions! More to come. HK45C 8 round +2 mag extensions. Replaces the floorplate for a +2 round addition for a total of 10 rounds in the...HKP-17999$29.95 -
HK USP Compact Optic Plate - Burris FastFire - Red Dot Pistol Mount
HKP HK Parts
$49.95HKP HK USPC Red Dot Pistol Mount Red Dot mounting plate to allow the use of a Burris Fast Fire, Docter, Vortex Venom or other similar specs Red Dot Sights. Replaces rear sight to allow the mounting of a Red Dot Sight to your HK pistol listed above...HKP-18899$49.95 -
HK MP5K, SP5K, HK91, G3 Series Binary Trigger - Curved - BFSIII
FA Franklin Armory
$629.99Franklin Armory BFSIII HK-C1 Binary Trigger Pack for HK MP5K, HK SP5K, HK91, and HK G3 The BFSIII™ for HK is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest semi-automatic trigger...HKP-18434$629.99 -
HK MP5, SP5 Trigger Group- Binary
Magpul / FA Franklin Armory
$859.95 - $889.95Magpul SL HK MP5 Binary Trigger Group: Latest and greatest trigger group option for those looking for a binary option and the added comfort of the Magpul housing. We take a Magpul SL housing, our compatible binary selector levers, and complete it with a...HKP-21406-M$859.95 - $889.95