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 VP9CC Pressure Spring For Catch
H&K Heckler & Koch
$5.95HK VP9CC Pressure Spring For Catch Factory HK pressure spring for the HK VP9CC pistol. Compatible With: VP9CCHKP-22758$5.95 -
On Sale
HK USP Extractor - Full Size - 9mm, .40 S&W - USED
H&K Heckler & Koch
Now: $31.46Was: $54.95Heckler and Koch 9mm and .40 S&W Extractor for Full Size HK USP - USED ONLY 2 UNITS AVAILABLE - AS PICTURED USED PARTSHKP-00324-BNow: $31.46Was: $54.95 -
HK VP9CC Charging Support L-Right
H&K Heckler & Koch
$5.95HK VP9CC Charging Support L-Right Factory HK charging support lever for HK VP9CC pistol. Compatible With: VP9CCHKP-22728$5.95 -
HK VP9CC Trigger Assembly - Complete
H&K Heckler & Koch
$68.95Heckler and Koch VP9CC Trigger Assembly Complete HK factory complete trigger assembly for HK VP9CC pistol. Compatible With: VP9CCHKP-22745$68.95 -
HK VP9CC Charging Support L, Left
H&K Heckler & Koch
$5.95HK VP9CC Left Charging Support Factory HK charging support for HK VP9CC pistol. Facilitates left-side charging and slide manipulation. Compatible With: VP9CCHKP-22727$5.95 -
On Sale
HK21 Bolt Head - FMP - NOS
FMP HK CONTRACT
Now: $706.46Was: $784.95HK21 NOS Bolt Head - FMP Genuine new old stock FMP contract date-coded bolt head for the HK21 platform. Perfect for a replacement or spare as these bolt heads are no longer in production. Compatible...HKP-22711Now: $706.46Was: $784.95 -
Out Of Stock
HK VP9 Sight Set - Front Sight and Rear RMR Plate - Green Fiber Optic - Suppressor Height
XS Sights
$57.95XS Sights Green Front Fiber Optic Sight and Rear RMR Optic Plate Set for HK VP9 Optics Ready Pistols - Suppressor Height XS Sights green front suppressor-height fiber optic sight and rear RMR pattern...HKP-22674$57.95 -
USP Curved Trigger - Adjustable
Grayguns
$97.95Grayguns Adjustable Curved Trigger for HK USP Full Size Pistols - 9mm / .45 ACP The Grayguns adjustable curved trigger is a premium aftermarket trigger upgrade for full-size HK USP pistols. The curveHKP-22629$97.95 -
On Sale
HK21, HK11 Barrel with Grip Handle and Flash Hider - 17.7" - MM
Michaels Machines
Now: $1,331.06Was: $1,478.95MM HK21 Barrel - 17.7" - CHF Michael's Machines HK21 barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Each barrel ships complete with a factory...HKP-22534Now: $1,331.06Was: $1,478.95 -
On Sale
HK VP40 Holster - Warrior - OWB - LH - BLEMISHED
Comp-Tac
Now: $24.71Was: $49.95Comp-Tac Kydex Warrior Left Hand Holster For HK VP40 - BLEMISHED OPEN PACKAGE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED...HKP-99411Now: $24.71Was: $49.95 -
On Sale
HK P30, P30S Barrel - 9mm - 3.85" - BLEMISHED
H&K Heckler & Koch
Now: $172.46Was: $269.95HK P30, P30S Barrel - 9mm - 3.85" - BLEMISHED ONLY 3 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DOESHKP-01828-BNow: $172.46Was: $269.95 -
Out Of StockOn Sale
HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED
HKP HK Parts
Now: $49.46Was: $149.95HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES AHKP-19338-USEDNow: $49.46Was: $149.95