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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HKP 9mm Micro Comp - Threaded 1/2x28 RH
HKP HK Parts
$29.95HKP 9mm Micro Comp - Threaded 1/2x28 RH The HK Parts Micro Comp & Thread Protector is designed to be lightweight and functional as both a compensator and thread protector. The HK Parts Micro Comp easily attaches to the end of any factory spec...HKP-19722$29.95 -
HK MP5, SP5, HK94 A3 F Stock - Retractable - 4-Position
H&K Heckler & Koch
$589.95H&K Heckler & Koch's A3 F 4-Position Retractable Stock designed for HK MP5, HK SP5, and the HK94 9mm submachine gun. This German HK A3 F retractable buttstock is the latest and the greatest! The retractable design allows sliding of the stock to...HKP-17614$589.95 -
HK CC9 Magazine - 9mm - 12 Round - Extended Floorplate - Red Follower
H&K Heckler & Koch
$49.95H&K HK CC9 12 Round Magazine - Extended Floor PlateHKP-21572$49.95 -
M-LOK Vertical Foregrip - Long
HKP HK Parts
$24.95HKP Universal M-LOK Long Grip This grip is by far the nicest grip we have encountered for the money. This rock solid grip is a must have for anyone that uses a vertical grip. This is the only vertical grip out there that offers a built in aluminum...HKP-20680$24.95 -
HK416, MR556 Gas Block Roll Pin
H&K Heckler & Koch
$5.95HK 416 & MR556 Gas Block Pin This is the retaining pin for an HK 416 gas block. A must-have, as HK recommends using new pins once they are removed or damaged. Size: 5 x 18 mm.HKP-02534$5.95 -
On Sale
HK MP5, MP5K Cocking Handle - BLEMISHED
HKP HK Parts
Now: $4.95Was: $9.95HKP MP5, MP5K Cocking Handle - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Each new US-made cocking handle is an exact copy of the...HKP-00653-BNow: $4.95Was: $9.95 -
HK MP5SD Sealing Ring - Enhanced
HKP HK Parts
$9.95HKP MP5SD Sealing Ring - Enhanced The enhanced sealing ring is made from a newer, longer-lasting material as well as having a slightly thicker profile for secure sealing. The MP5SD sealing ring is the gasket that seals the SD suppressor against the...HKP-18053$9.95 -
HK MP5, HK94, SP5 Stock - SL
Magpul
$159.95Magpul - SL Stock - MP5, SP5 The Magpul SL Stock HK94/MP5, SP5 delivers the modern qualities found in our original MOE SL® carbine stock for AR15/M4 carbines to MP5-pattern rifles. Durable, lightweight, and collapsible, the SL incorporates Magpul...HKP-20023$159.95 -
HK 90 Series Pistol Grip Parts Storage Holder
HKP HK Parts
$29.95HK Pistol Grip Parts Storage Holder - SEF & Ambidextrous Housings A must-have item for storage, it doesn't have a battery compartment to maximize storage. This HK grip plug will fit all SEF or Ambidextrous housings that have the holding tabs in the...HKP-19452$29.95 -
HK USP, P2000SK, HK45CT Match Trigger Return Spring
H&K Heckler & Koch
$8.95HK Pistol Match Trigger Return Spring This is the TRS that is in the Match trigger kit. This spring works better with the SA/DA and is lighter than the standard trigger return spring. This is a great spare part to have on hand...HKP-02666$8.95 -
HK MP5, SP5K Firing Pin Spring
H&K Heckler & Koch
$9.95HK Heckler & Koch HK94, MP5 Spring - Firing Pin German Fits all of the MP5, SP5, SP5K, MP5K 9mm and 40/10 Variants including MP5, 94 clones. The firing pin is one of the most common repair and replacement items. Compatible With: MP5, MP5K SP5,...HKP-00062$9.95 -
IMI 32 Round Uzi 9mm Magazine - German Military
IMI
$39.95IMI 32 Round Uzi 9mm Magazine - German Military These magazines were military only, not commercial, which makes them desirable magazines. Conditions vary from excellent to like new shape. Any cosmetic imperfections are mostly from handling and...HKP-14472$39.95