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 MP5SD Sealing Ring - Enhanced
HKP HK Parts
$9.95HKP HK Parts Enhanced Sealing Ring for HK MP5SD 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...HKP-18053$9.95 -
HK MP5 Armorer's Manual - 90 Pages
H&K Heckler & Koch
$19.95H&K Heckler and Koch HK MP5 Armorer's Manual - 90 Pages Table of Contents History of Heckler and Koch General Information Exterior Nomenclature Safety Check / Clearing Procedure Markings on the MP5 Major Variants (Model variants) Operator Use /...HKP-00101$19.95 -
HK MP5, HK94, SP5 Handguard - Extended - M-LOK, Picatinny Rails
UTG PRO
$199.95 - $239.95UTG HK MP5 PRO Handguard with Extended Upper Picatinny Mount - M-LOKCOSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Made in the USA. Compatible...HKP-20739-M$199.95 - $239.95 -
Out Of Stock
HK MP5, MP5K Cocking Handle - Extended
HKP HK Parts
$39.95HK MP5, MP5K Contoured Cocking Handle - Extended Enhanced extended cocking handle for the MP5 style of firearms. Each cocking handle offers twice the grabbing area for charging the firearm and each is made 100% from solid steel billet. Each item also...HKP-17149$39.95 -
HK MP5 Trigger Pack - Full Auto - Complete - 9mm
H&K Heckler & Koch
$349.95H&K Heckler & Koch - HK MP5 Trigger Pack - Full Auto - Complete - 9mm German Each factory full auto trigger pack includes a new 9mm 3rd generation German ejector lever installed. We do NOT use Pakistani, MKE, or US-made ejector levers in our...HKP-00981$349.95 -
HK VP9, VP40 Tactical Magwell - EDC
HKP HK Parts
$59.95HKP HK VP9 & VP40 EDC Tactical Magwell Our newest and greatest EDC magwell was redesigned for a much faster and more reliable mag reloads. With a much greater funneled area, it guides you to the correct position every time, resulting in no-look...HKP-20331-M$59.95 -
Out Of Stock
HK MP5, MP5K Locking Piece - 100 Degree - RCM
RCM
$34.99RCM MP5, HK94 & MP5K 100 Degree Locking Piece Each 100-degree MP5 locking piece is the proper, correct locking piece for all HK MP5, HK94 and full-size clones as well as this is now the correct locking piece for all HK MP5K & MP5K-PDW variants,...HKP-01242$34.99 -
Out Of Stock
HK MP5, MP5K Cocking Handle - Extended - Enhanced
HKP HK Parts
$39.95HKP HK MP5, MP5K Extended Cocking Handle - Enhanced Enhanced extended cocking handle for the MP5 & MP5K style of firearms. Designed to also function with UTG monolithic M-LOK handguards. Made from solid steel billet and coated with a salt bath...HKP-18267$39.95 -
HK MP5, HK94 Case Deflector Rivet - US
HKP HK Parts
$1.95HKP MP5, HK94 Case Deflector Rivet Each case deflector will require 2 rivets to attach the case deflector to the receiver or flat. If you want the factory look and feel of doing it right these rivets are a must. These are a factory correct rivet that...HKP-18008$1.95 -
HK MP5, MP5K Optic Mount - Extended Claw - Picatinny
UTG PRO
$64.95UTG HK MP5/MP5K Claw Mount - Extended Picatinny UTG Pro Claw Mount for MP5 and MP5K pattern firearms featuring UTG's patented receiver locking interface. Each U.S. made mount features an extended Picatinny rail, lightweight matte black...HKP-21606$64.95 -
Out Of Stock
HK MP5K Vertical Foregrip - 3 Slot Rail Section
HKP HK Parts / Magpul
$69.95HKP, Magpul MP5K VFG w/Rail Section - 3 Slots New VFG for the MP5K platform is now M-LOK compatible and comes with a Magpul Aluminum 3 slot rail. The perfect combination to install lights or lasers. M-LOK slots are integrated on both sides to make it a...HKP-20726$69.95 -
HK MP5 Handguard - .22LR - M-LOK
HKP HK Parts
$99.95HKP HK MP5 .22LR M-LOK Handguard The M-LOK tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required, a true drop in option. Features: Made in the USA CNC machined from aircraft grade...HKP-20305-M$99.95