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
Harris Bipod Adapter - Long - Picatinny
HKP HK Parts
Now: $22.28Was: $34.95Harris Bipod Adapter This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-style bipod. This will fit any Picatinny spec rail or rail system. Made in...HKP-00909Now: $22.28Was: $34.95 -
HK MP5 Locking Piece #25 - 60 Degree - High Impulse - .40 S&W, 10mm
H&K Heckler & Koch
$229.95New HK German MP5 40 or MP5 10mm High Impulse Locking Piece Marked #25 This is the 60-degree locking piece that is used for high-impulse ammo, commonly found in +P or +P+ ammo. This locking piece is...HKP-00437$229.95 -
On Sale
HK MP5, HK94 Cocking Tube - LH
HKP HK Parts
Now: $76.47Was: $119.95HKP MP5, HK94 Cocking Tube - For Lefties This is the one and only left handed cocking tube for the MP5/HK94 ever made and it happens to be a US manufactured part. Features include enlarged charging...HKP-17380Now: $76.47Was: $119.95 -
HK MP5 to AR Stock and Adapter
HKP HK Parts
$229.95HKP MP5 to AR Adapter & Stock Complete Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to protect...HKP-17119$229.95 -
On Sale
HK MP5, HK94, HK34 Barrel - 9mm - 16.5" - Non-Threaded
RCM
Now: $168.91Was: $264.95RCM MP5, HK34, HK94 9mm Barrel - Non-Threaded Each non-threaded barrel is hand-selected from the finest cold hammer forged steel (CHF) 41V45 barrel blanks. Expertly profiled and chambered in the...HKP-00927Now: $168.91Was: $264.95 -
HK MP5K Trigger Group - Super Safety - Push Pin
War Hammer Armaments
$624.95 - $674.95War Hammer Armaments Polymer MP5K Super Safety Lower Receiver - Push Pin War Hammer Super Safety complete lower for MP5K push pin platforms. Constructed of Kevlar and carbon-fiber–infused polymer,...HKP-22827-M$624.95 - $674.95 -
HK MP5K, AP5-P Rear Sight Drum
MKE
$28.95MKE MP5K & AP5-P Rear Sight Drum Factory MKE manufactured rear sight drum for the Century AP5-P. Compatible With: HK MP5K CenturHKP-22480$28.95 -
$49.95 -
HK CC9 Magazine Release Button
H&K Heckler & Koch
$19.95Heckler and Koch Magazine Release Button for HK CC9 Made in Germany, this magazine release button for CC9 pistol allows the user to release the magazine from the framHKP-22111$19.95 -
HK416, MR556, AR-15, M4 Magazine - TMAG Gen 3 - 20 Round - Translucent OD Green
Magpul
$24.95Magpul AR/M4 TMAG® 20 Round GEN M3™ Magazine - Translucent OD Green US-made translucent 20 round magazine optimized for AR/M4 platforms, but modified to permit operation with other 5.56 and .223...HKP-22035$24.95 -
HK G36K Handguard with Heat Shield
H&K Heckler & Koch
$84.95H&K G36K Handguard with Heat Shield Lightweight and durable design for improved heat management and reliable performance.HKP-22010$84.95 -
HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Alpine Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - OD Green - HK93,33,53 German military surplus but hand-picked to give you the best of the lot. Ready to install on your HK or clone rifle. Each stock features the correct...HKP-21847$139.95