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 USPC Trigger Bar - 9mm, .40 S&W
H&K Heckler & Koch
$22.95Heckler and Koch Trigger Bar for HK USP Compact 9mm and .40 S&W Compatible With: USP CompactHKP-02266$22.95 -
Out Of Stock
HK G36 IDZ Convex Buttstock - Adjustable, Folding
H&K Heckler & Koch
$347.95HK Heckler and Koch Convex Folding Adjustable IDZ Buttstock for HK G36 Features: 3 position forward and back 3 cheek piece elevation positions. Folding capability while retaining the ability to fire with the buttstock folded. Super robust, compact...HKP-17703$347.95 -
On Sale
HK USP Holster - Compensator - LH
Odin Holsters
Now: $59.95Was: $89.95Odin Holsters HK USP Comp Weight™ Compensator LH Holster The USP 9mm/.40 Comp Weight™ holster is an outside the waistband that allows the HK Parts Comp Weight™ to be installed as well. Each holster is made by hand and is a custom...HKP-18873Now: $59.95Was: $89.95 -
HK416, MR556 Axis Rivet
H&K Heckler & Koch
$4.95H&K HK MR556/416 Axis Rivet New HK German HK 416 Rivet. Compatible With: HK MR556 HK 416HKP-16776$4.95 -
HK416 A5 Stripped Upper Receiver - RAL8000
H&K Heckler & Koch
$1,559.95HK German Un-Assembled - Stripped HK416 A5 Upper Receiver - RAL 8K Brand new factory German RAL 8000 HK416A5 upper receiver. Compatible With: HK416 HK MR556 HK MR223 Looking for a matching lower for your build? STS416 A5 LOWER - Specialized...HKP-18787$1,559.95 -
Out Of Stock
$9.95 -
HK21E, HK23E, MSG90 Optic Mount - Picatinny Rail
Michaels Machines
$687.95HK21E/23E Or MSG90 Quick Release Full Picatinny Rail Scope Mount Rock-solid scope made in the USA to factory HK specs. Available exclusively at HK Parts. Please Note: These units are shipped in bulk and will have handling marks on the rails. Units are...HKP-01923$687.95 -
HK91, G3 Key Mod Handguard
HKP HK Parts
$149.95HK G3, HK91 & PTR Low Profile Key Mod Forearm The KeyMod tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your...HKP-17178$149.95 -
Out Of Stock
HK33, HK53, HK93 Lower Housing - 3 Position SEF 0,1,25 Pictogram - Push Pin
H&K Heckler & Koch
$199.95H&K 93/53/33 (5.56/.223) SEF 3 Position (0,1,25 Pictogram) Housing - Push Pin Upgrade your HK rifle with this premium SEF housing, featuring a 3-position 0,1,25 selector. Designed for precision and reliability, this housing is crafted to fit...HKP-17059$199.95 -
Out Of Stock
HK MP5, MP5K Recoil Rod Stop Pin
H&K Heckler & Koch
$14.99HK German MP5 & MP5K Recoil Rod Stop Pin New HK German manufacture a great spare or replacement item to have on hand. Compatible With: MP5, 94, SP5 MP5K, SP89, SP5KClones or other custom buildsHKP-17421$14.99 -
HK MP5 Helmet Stock - Folding and Adjustable - 9mm
B&T Brugger & Thomet
$379.95B&T MP5 Folding Stock/Length Adjustable Helmet Stock Swiss made B&T folding and length adjustable helmet stock for the HK MP5 and compatible HK MP5 style firearms. This is a military grade stock as supplied by B&T to military and law...HKP-18244$379.95 -
HK MP5, HK94, HK34 Barrel - 9mm - 16.175" - Threaded 1/2x28
RCM
$249.95RCM MP5, HK34, HK94 Barrel - 9mm - 16.175"- Threaded 1/2x28 Each barrel is meticulously crafted from premium cold hammer forged (CHF) 41V45 steel, expertly profiled and chambered with a 16-flute chamber profile. Finished with a highly durable nitrided...HKP-17761$249.95