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
HK VP40 Holster - Warrior - OWB - LH - BLEMISHED
Comp-Tac
Now: $32.95Was: $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 PART SALES ARE FINAL. Kydex holster manufactured by...HKP-99411Now: $32.95Was: $49.95 -
On Sale
HK91, G3, PTR Grip Frame SEF - Metal HK German - GUNSMITH SPECIAL
H&K Heckler & Koch
Now: $58.95Was: $189.95HK91, G3, PTR Grip Frame SEF - Metal HK German - GUNSMITH SPECIAL ONLY 1 UNIT AVAILABLE - AS PICTURED REAR IS BENT AND OUT OF SPEC THIS PART IS NOT ELIGIBLE FOR RETURN Please Note: Will require work before being functional. HKP recommends the work be...HKP-17637-BNow: $58.95Was: $189.95 -
On Sale
HK91, G3, PTR Grip Frame SEF - Metal HK German - GUNSMITH SPECIAL
H&K Heckler & Koch
Now: $58.95Was: $189.95HK91, G3, PTR Grip Frame SEF - Metal HK German - GUNSMITH SPECIAL ONLY 1 UNIT AVAILABLE - AS PICTURED REAR IS BENT AND OUT OF SPEC THIS PART IS NOT ELIGIBLE FOR RETURN Please Note: Will require work before being functional. HKP recommends the work be...HKP-17637-BL-BNow: $58.95Was: $189.95 -
On Sale
HK USP V5, V6, V7 Complete Bobbed Hammer - USED
H&K Heckler & Koch
Now: $39.95Was: $59.95HK USP V5, V6, V7 Complete Bobbed Hammer - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Compatible With: HK USP 9mm HK USP 40HKP-01934-USEDNow: $39.95Was: $59.95 -
On Sale
HK P2000 Magazine Extension Kit - +7 - Red - BLEMISHED
HKP HK Parts
Now: $44.95Was: $64.99HK P2000 Magazine Extension Kit - +7 - Red - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This listing is for...HKP-21527-RED-BNow: $44.95Was: $64.99 -
On Sale
HK MP5, 90 Series, AP5 Trigger
MKE
Now: $29.95Was: $34.95MKE AP5, MP5, 90 Series Trigger Steel trigger manufactured in Turkey for HK 90 Series roller-delayed firearms. Designed as a replacement component for compatible MP5 and related platforms. Compatible With: MP5, MP5K, MP5K-PDW, MP5SD SP5, SP5K, SP5K-PDW,...HKP-22519Now: $29.95Was: $34.95 -
MG3, MG42, HK21 NOS Tripod With HK21 Adapters
DISA (Madsen)
$9,989.95NOS MG3, MG42 ground Tripod With HK21 Adapters This is a Lafette-style ground mount, dated "3/63," manufactured by DISA (Madsen) for use with MG42, MG3, and MG53 machine guns. Original Olive green paint throughout the tripod's body, and includes shoulder...HKP-99414$9,989.95 -
HK21 Cylinder Head Screw - Belt Inlet
H&K Heckler & Koch
$5.95HK21 Cylinder Head Screw - Belt Inlet Replacement cylinder head screw for the HK21 belt inlet assembly, manufactured to original specifications. Ensures proper fit, secure retention, and reliable feeding operation. Compatible With: HK21 THIS CLOSEOUT...HKP-99412$5.95 -
On Sale
HK Mark 23 Tactical Barrel - .45 ACP - 6.02" - Threaded .578x28 RH - USED
RCM
Now: $212.95Was: $289.95HK Mark 23 Tactical Barrel - .45 ACP - 6.02" - Threaded .578x28 RH - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This HK Mark 23 tactical threaded barrel designed for compatibility with various...HKP-17444-USEDNow: $212.95Was: $289.95 -
On Sale
Glock 17 Magazine Extension Kit - 9mm - +6 Round - Blue - BLEMISHED
HKP HK Parts
Now: $18.95Was: $34.95HKP Glock 17 - +6 Round 9mm Magazine Extension Kit - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Designed to fit all of the Glock 17 models...HKP-18348-BU-BNow: $18.95Was: $34.95 -
On Sale
M320 40MM Grenade Launcher Front Mounting Bracket for M4 - Incomplete - BLEMISHED
Other
Now: $63.95Was: $149.95M320 40MM Grenade Launcher Front Mounting Bracket for M4 - Incomplete - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED INCOMPLETE - MISSING RELEASE LEVER COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR...HKP-99407Now: $63.95Was: $149.95 -
On Sale
HK33, HK53, HK93 Extractor - USED
H&K Heckler & Koch
Now: $48.95Was: $67.95HK33, HK53, HK93 Extractor - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. A great replacement for your HK or clone. A high wear item that can become worn,...HKP-00189-USEDNow: $48.95Was: $67.95