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 +15 Magazine Extension
HKP HK Parts
$22.95 - $29.95HKP HK VP9/P30 +15 Magazine Extension The HK Parts manufactured HK pistol mag extension allows the user to convert existing VP9, P30, P2000, & USPC magazines to an enhanced magazine capacity. Each mag extension is made from next-generation enhanced...HKP-16857-M$22.95 - $29.95 -
HK MP5, SP5 Replacement Parts Kit
HKP HK Parts / Heckler & Koch
$229.95HK / HKP MP5, SP5 Replacement Parts Kit This kit has the the most commonly worn parts needed to keep your precious MP5/MP5K going. Our German and U.S. spare parts kit has everything you will need to keep feeding rounds down range. Our spare parts kit...HKP-20919$229.95 -
HK VP9SK EDC Tactical Magwell
HKP HK Parts
$59.95HKP HK VP9SK EDC Tactical Magwell Low profile, every day carry magwell for the HK VP9SK pistol. The low profile mag-well is designed for the average every day VP9SK owner. That would like the enhancements and competitive advantage a magwell offers...HKP-18164-M$59.95 -
HK UMP, USC, SL8, G36 Front Sight Roll Pin - 9mm / .40 S&W / .45 ACP / 5.56 / .223
H&K Heckler & Koch
$5.95Front Sight Roll Pin - HK UMP, USC, G36, & SL8HKP-02158$5.95 -
HK Rifle Rubber Buttpad - Wooden Stocks - Enhanced
HKP HK Parts
$29.95Butt Pad For Wooden Stocks - Enhanced Rubberized Buttpad The enhanced rubberized butt pad is a direct replacement to a standard fixed stock butt pad that can be replaced and upgraded in seconds. This buttpad provides a softer rubberized surface for...HKP-17667$29.95 -
Out Of Stock
HK91, G3, HK33, HK53 HK93 Tac Latch
$69.95HK Rifle Tac Latch For HK 91, G3, HK 93, & 33 HK's were designed to have a quick one-handed release capability for the magazine (paddle mag release). However, the semi-auto versions eliminated this much-needed feature due to import restrictions...HKP-02791$69.95 -
HK MP5 Stock - KES
Safety Harbor Firearms
$279.95KES HK MP5 Stock The all-new KES is designed to fit the MP5 pattern pistols/rifles. Specifications: Guide rods slide into the existing slots present on the receiver Rods machined to go underneath the reinforcing piece welded onto the rear of the...HKP-21086$279.95 -
Out Of Stock
HK USP Tactical Barrel - .40 S&W - 4.9"- Threaded 14.5x1 LH
H&K Heckler & Koch
$299.95H&K USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH This genuine Heckler & Koch part is a drop-in replacement for the full-size USP, USP Tactical, and other .40 S&W pistols. The tactical threaded barrel offers precise fit and...HKP-00328$299.95 -
HK USP Magazine Floorplate - .45 ACP - 10 Round - Standard
H&K Heckler & Koch
$10.95H&K 10 Round HK USP .45 ACP Standard Floor Plate Perfect for concealed carry as the flat floor plate has a lower profile. Compatible With: HK USP .45 Magazine - 10 round HK USP .45 Tactical Magazine - 10 roundHKP-01194$10.95 -
HK USP 9mm, 40 S&W Recoil Spring
H&K Heckler & Koch
$9.95HK USP 9mm/40 S&W Recoil Spring It is the factory 12-12.5 lb. recoil spring. Fits the 9mm or .40 USP pistols and can also be used as a reduced-weight spring for the HK USP .45 pistol. A great replacement item that should be...HKP-02067$9.95 -
HK MP5SF Elbow Spring Bushing Sleeve
H&K Heckler & Koch
$5.95Heckler and Koch replacement distance sleeve for MP5SF elbow spring with roller Features: Precision-machined elbow spring and roller used in traditional roller-delayed trigger packs. Original HK design ensures perfect trigger geometry, smooth...HKP-03330$5.95 -
HK USP Detent Plate - V5, V6, V9, V10
H&K Heckler & Koch
$19.95HK Detent Plate For USP Variant 5, 6, 9, & 10 Conversions This plate, when installed, will allow you to have the "safety" only and NO decock function on your pistol. This plate will fit and work for both left-hand and right-hand setups. Compatible...HKP-01247$19.95