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 P30, P30L, P30SK Straight Trigger
Grayguns
$95.00Designed by Keith Hosey, Grayguns’ director of gunsmithing, the HK P30 Straight Trigger is a first-of-its-kind in the market. It fits all P30 variants. The trigger reduces over-travel while featuring a 90-degree optimal trigger break...HKP-19748$95.00 -
HK MP5, SP5, AP5 Handguard - SL
Magpul
$49.95Magpul HK MP5, HK SP5, HK AP5 SL Handguard The Magpul SL handguard for the HK MP5 is a high-strength, injection-molded polymer handguard solution that provides the user with improved ergonomics and anti-slip texturing. It also includes M-LOK®...HKP-19309-M$49.95 -
Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 15 Round - 9mm
H&K Heckler & Koch
$99.95Heckler and Koch German MP5, MP5K, SP5, SP5K - 15 Round Magazine Brand new factory fresh German HK 15 round curved magazine. Each magazine is stamped 9X19mm and is a new HK German production. Compatible With: MP5, SP5 MP5K,...HKP-02409$99.95 -
HK MP5, HK94, SP5 Handguard - M-LOK, Picatinny Rails
UTG PRO
$199.95 - $239.95UTG HK MP5 PRO Handguard with Upper Picatinny Mount - M-LOK Made in the USA. Compatible With: HK MP5 HK94 SP5 AP5 MAC-5 clones may require custom fitment. Modified components are not eligible for return. In-spec clones & custom...HKP-20739-M$199.95 - $239.95 -
HK VP, USP, P30, P2000, HK45 Magazine Release Spring
H&K Heckler & Koch
$3.95Heckler and Koch Magazine Release Spring for all HK Pistols Compatible With: VP9 VP9F VP9K VP9X VP9L VP9SK VP9 Tactical VP9 Tactical OR VP9 Match VP40 P30 P30L P30SK P2000 P2000SK USP USP Compact USP Compact Tactical USP Tactical HK45 HK45 Compact HK45...HKP-01814$3.95 -
HK VP9, P30 Magazine - 20 Round - 9mm
H&K Heckler & Koch
$64.95Heckler and Koch 20 Round HK VP9 Magazine New HK German manufactured & factory fresh production. Each factory HK magazine holds 20 rounds for use in all VP9, P30, P30L, P30S 9mm Models. Each magazine is marked with the factory 20 round witness...HKP-20861-M$64.95 -
Out Of Stock
HK MP5, MP5K Locking Piece - 100 Degree - RCM
RCM
$39.95RCM 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$39.95 -
HK MP5, SP5K Firing Pin Spring
H&K Heckler & Koch
$9.95HK Heckler & Koch HK94, MP5 Spring - Firing Pin German Fits all of the MP5, SP5, SP5K, MP5K 9mm and 40/10 Variants including MP5, 94 clones. The firing pin is one of the most common repair and replacement items. Compatible With: MP5, MP5K SP5,...HKP-00062$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 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 much faster and more reliable mag reloads. With a much larger funnel area, it guides you to the correct position every time, resulting in no-look magazine...HKP-20331-M$59.95 -
HK MP5, SP5, HK94 A3 F Retractable Buttstock - 4 Position
H&K Heckler & Koch
$698.95H&K Heckler & Koch's A3 F 4-Position Retractable Stock designed for HK MP5, HK SP5, and the HK94 9mm submachine gun. This German HK A3 F retractable buttstock is the latest and the greatest! The retractable design allows sliding of the stock to...HKP-17614$698.95 -
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