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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On Sale
HK416, MR556 Threaded Pin for Buttstock Release Inserts - E1, E2 - BLEMISHED
H&K Heckler & Koch
Now: $3.35Was: $5.95H&K HK MR556/416 Threaded Pin for E1/E2 Buttstock Release Lever Insert - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-16604-BNow: $3.35Was: $5.95 -
On Sale
AR-15 Buffer Tube - Mil-Spec - BLEMISHED
HKP HK Parts
Now: $19.09Was: $29.95Mil-Spec US-Made Buffer Tube - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Compatible With:HKP-02727-BNow: $19.09Was: $29.95 -
HK USP, Mark 23 Magazine Housing - .45 ACP - 10 Round
H&K Heckler & Koch
$62.95H&K 10 Round USP/Mark 23 .45 ACP Magazine Housing Only New HK German USP .45 & Mark 23 10 Round Magazine body only. All Steel HK construction.HKP-16544$62.95 -
HK416 Laser and Light - X5L-RS
Viridian
$448.95Viridian X5L-RS Gen 3 Green Laser and 500 Lumen Tactical Light - HK416 / Picatinny Rail The Viridian X5L-RS Gen 3 combines a 5mW green laser with a 500-lumen tactical light in a compact rail-mounted...HKP-22887$448.95 -
HK VP9CC Barrel - 9mm - 3.13"
H&K Heckler & Koch
$321.95Heckler and Koch VP9CC 3.13" Barrel Factory HK steel barrel for the VP9CC pistol. Designed for direct replacement use, this barrel provides proper chambering and factory fit on VP9CC pistols...HKP-22722$321.95 -
HK91, G3 Bolt Carrier - .22 LR Conversion - Excellent
H&K Heckler & Koch
$473.95Heckler and Koch German Steel .22 LR Conversion Bolt Carrier for HK91, G3 - Used - Excellent Genuine German HK steel bolt carrier for G3 .22 LR conversion setups. Designed for use in converting...HKP-22856$473.95 -
HK MP5K Parts Kit - 9mm - SEF Trigger Group
H&K Heckler & Koch
$3,887.95Heckler and Koch German MP5K 9mm Parts Kit with SEF Trigger Group Genuine HK German MP5K parts kit with a flush barrel and SEF contoured trigger group configuration. Built from original German HK...HKP-22852$3,887.95 -
HK416, MR556 Free Floating Handguard - 14.5" - M-LOK - Super Modular
Geissele
$549.95Geissele MK15 Free Floating M-LOK Handguard for HK416 and MR556 - 14.5" - Desert Dirt Color Geissele Automatics MK15 free float handguard for HK416 and MR556 platforms. Designed as a direct-fit...HKP-22853$549.95 -
On Sale
HK German Bayonet Adapter Without Hardware - Incomplete - USED
H&K Heckler & Koch
Now: $74.96Was: $159.95HK German Bayonet Adapter Without Hardware - Incomplete - USED SOLD INDIVIDUALLY - VARYING CONDITION SHOWN <HKP-00021-BNow: $74.96Was: $159.95 -
On Sale
HK91, G3 Magazine Floorplate - 7.62x51 / .308
H&K Heckler & Koch
Now: $14.96Was: $29.95Magazine Floorplate for HK91, G3 - 7.62x51 / .308HKP-99477Now: $14.96Was: $29.95 -
On Sale
HK MP5K Trigger Group - 9mm - Navy Style with AR Grip and Match Trigger - FDE - BLEMISHED
Magpul
Now: $389.96Was: $649.95Magpul HK MP5K AR 9mm Navy Style Match Trigger Group - FDE Our improved HK-AR Navy ambidextrous lower housing is now paired with our match trigger pack and a Magpul MOE grip to make this complete...HKP-99474Now: $389.96Was: $649.95 -
HK VP9CC Grooved Pin For Release Catch
H&K Heckler & Koch
$5.95HK VP9CC Grooved Pin for Release Catch Factory HK grooved pin for the release catch for the HK VP9CC pistol. Compatible With: VP9CCHKP-22755$5.95