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 MP5 Handguard with LED Weapon Light - TL99
B&T Brugger & Thomet
Now: $551.95Was: $649.95B&T Brugger & Thomet Model TL99 CREE LED Lit Handguard for HK MP5 and HK94 Models Each unit handguard is built with the integrated tactical LED light and 3 position switch. Specifications: High intensity torch light Focused beam Shock proof,...HKP-16901Now: $551.95Was: $649.95 -
On Sale
HK MP5, SP5 Lower - ARC
AS Designs
$584.95 - $649.95AS Designs ARC Lower for HK MP5, SP5, HK94 The ASD ARC Lower allows for faster follow-up shots by resetting after each shot. This is a true drop-in trigger and housing assembly featuring SEMI, ARC, and SAFE selections. Installation is easy; simply...HKP-22545-M$584.95 - $649.95 -
On Sale
HK VP9, VP40 Hybrid Trigger - Adjustable
Grayguns
Now: $105.95Was: $125.00HK VP9, VP40 Adjustable Hybrid Trigger The Adjustable Hybrid Trigger for the HK VP9 and VP40 Series fits the standard variants. The trigger features an over-travel adjustment while providing a 90-degree optimal trigger break. This...HKP-22343Now: $105.95Was: $125.00 -
HK Hammer and Pressure Shank Pin - 90 Series
H&K Heckler & Koch
$3.95H&K Hammer and Pressure Shank Pin - 90 Series For pinned-style hammer and shanks, this pin securely holds the two components together. This original H&K production part has never been installed. Made from correct German-spec steel to meet exact...HKP-21854$3.95 -
On Sale
HK MP5 Adapter - Folding Stock
B&T Brugger & Thomet
Now: $96.95Was: $114.95B&T HK MP5 Adapter for Folding Stock Upgrade your MP5 platform with precision Swiss engineering. The Brügger & Thomet HK MP5 Adapter for Folding Stock provides a secure, reliable mounting interface for B&T’s side-folding stocks...HKP-21751Now: $96.95Was: $114.95 -
On Sale
HK MP5 Dual Folding Stabilizer - With Adapter - OD Green
HKP HK Parts / Strike Industries
Now: $271.95Was: $319.95Strike Industries Dual Folding Stabilizer with HKP MP5 Adapter The Strike Industries Dual Folding Stabilizer paired with the HKP MP5 picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...HKP-21655-MNow: $271.95Was: $319.95 -
On Sale
HK21 Drum Hanger and100rd Drum
HKP HK Parts
Now: $389.95Was: $435.95HKP HK21 Drum Hanger with H&K 100 Round Drum Complete your HK21 or FMP21 build with our HKP drum hanger and H&K original 100-round drum. Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and...HKP-21633Now: $389.95Was: $435.95 -
On Sale
HK G3, M61 Barrel - 7.62 - 17.7" - Threaded 15x1 RH
RCM
Now: $232.95Was: $274.95RCM HK G3 & M61 (7.62x51/.308) Barrel - Threaded 15x1 RH Brand New Barrel for the Pre-G3 HK M61. The M61 was produced by H&K in Germany and has some aesthetic features that the final G3 rifles did not incorporate. A true piece of history can be...HKP-21353Now: $232.95Was: $274.95 -
On Sale
HK G36, HK SL8 Bolt Catch USF
USA
Now: $11.95Was: $14.95HK G36 & SL8 Bolt Catch On AR-15 systems this would be similar to a cam pin. Compatible With: G36, G36K, G36C Sl8 variantsHKP-19122Now: $11.95Was: $14.95 -
HK243, G36, SL8 Handguard
H&K Heckler & Koch
$249.95HK German Sl8, G36 & HK243 Aluminum Handguard - IDZ New latest production HK G36, SL8 & HK243 forearm. This handguard offering is made entirely out of aluminum. This is the most robust forearm HK makes or that is available. This was designed for...HKP-17708$249.95 -
On Sale
HK VP9, VP40 Grip Wrap - Rubber - Medium Backstrap
Talon Grip
Now: $17.95Was: $19.99TALON Grip - H&K VP9, VP40 - Rubber Black - Medium Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...HKP-20246Now: $17.95Was: $19.99 -
On Sale
HK USPC Holster - Infidel Max - 9mm / .40 S&W
Comp-Tac
$65.95 - $66.95Comp-Tac HK USPC 9mm/.40 S&W Infidel Max RH Holster The Infidel Max Holster is an all-Kydex Inside the Waistband holster with cant adjustment holes to allow the user to change from a reverse cant, speed cant and FBI forward cant...HKP-19592-M$65.95 - $66.95