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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Out Of Stock
HK USP, Mark 23 Magazine Housing - .45 ACP - 10 Round
H&K Heckler & Koch
$49.95H&K 10 Round USP/Mark 23 .45 ACP Magazine Housing Only New HK German USP .45 & Mark 23 10 Round Magazine body only. All Steel HK construction.HKP-16544$49.95 -
Out Of Stock
HK USP Variant 1-6, 9, 10 Hammer Axle
H&K Heckler & Koch
$31.95HK USP Variant 1-6, 9, & 10 Hammer Axle Compatible With: HK USP 9mm HK USP 40 HK USP 45HKP-01931$31.95 -
HK USPC Trigger Bar - 9mm, .40 S&W
H&K Heckler & Koch
$46.95Heckler and Koch Trigger Bar for HK USP Compact 9mm and .40 S&W Compatible With: USP CompactHKP-02266$46.95 -
HK USP Series Front Sight 7.2mm
H&K Heckler & Koch
$54.95HK USP Series Front Sight 7.2mm Compatible with: HK USP 9mm HK USP 40 S&W HK USP 45 ACP HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK USP Compact 45 ACP HK USP Compact LEMHKP-02686$54.95 -
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 -
HK MR762 E2 Convex Butt Pad w/ Bowden Retaining Wire
H&K Heckler & Koch
$67.95MR762, 417 German Convex Butt Pad With Bowden Retaining Wire Harness This item can be added as an option on the HK MR762 & HK712/G28 E1/E2 Stock. Providing you an option to use either the concave or convex style buttpads for different mission...hkp-18488$67.95 -
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 -
HK G36 Guide Rod Set Screw
H&K Heckler & Koch
$9.95HK G36 Guide Rod Set Screw Replacement guide rod set screw for HK G36 platforms. Designed to secure the guide rod assembly within the bolt carrier group during proper installation and maintenance. Compatible With: G36HKP-01873$9.95 -
On Sale
HK G36, SL8 Barrel Retaining Nut
GSG9
Now: $41.95Was: $53.00HK G36 & SL8 Barrel Retaining Nut - USA Made in the USA. Compatible With: SL8 (all models & variants) G36E G36K G36C All other G36 VariantsHKP-18252Now: $41.95Was: $53.00 -
On Sale
HK G36, SL8 Optic Mount with Emergency Sights
B&T Brugger & Thomet
Now: $266.95Was: $296.95B&T Long Mounting Rail NAR for HK G36/G36K, with Emergency Sight Specifications: Color: Black Height max: 41.5 mm Length max: 483.2 mm Length of top rail: 306 mm + 113 mm Material: Aluminum & steel NATO Accessory Rails: 2 Part number:...HKP-16874Now: $266.95Was: $296.95 -
On Sale
HK91, G3 Key Mod Handguard
HKP HK Parts
Now: $112.95Was: $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-17178Now: $112.95Was: $149.95