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 Magazine Catch - Turkish Contract - Seconds
Other
Now: $9.95Was: $19.95Turkish Contract Magazine Catch for HK MP5 9mm - Seconds Turkish contract raw magazine catch for the MP5. This part is ideal for replacement, restoration, or custom fitment work on compatible builds. Specifications: Seconds Fitting may be...HKP-99485Now: $9.95Was: $19.95 -
On Sale
HK MP5 Magazine Catch - 9mm - Turkish Contract - Raw
Other
Now: $5.49Was: $19.95Turkish Contract Raw Magazine Catch for HK MP5 9mm Turkish contract raw magazine catch for the MP5. This part is ideal for replacement, restoration, or custom fitment work on compatible builds. Specifications: Raw finish Fitting may be...HKP-99484Now: $5.49Was: $19.95 -
HK MP5 A3 Retractable Stock - Like New
H&K Heckler & Koch
$799.95Heckler and Koch MP5 A3 Retractable Stock Retractable A3 stock designed for the Heckler and Koch MP5 platform. In like-new condition. Compatible With: MP5, SP5 HK94 In-spec clones and custom buildsHKP-22784$799.95 -
Out Of StockOn Sale
HK416, MR556, AR-15 Grip with Beavertail and Finger Grooves
Other
Now: $10.95Was: $12.95DLG Tactical AR-15 Rubberized Grip with Beavertail Upgrade your AR platform with the DLG Tactical Rubberized Grip with Beavertail. Designed with ergonomic finger grooves, a beavertail backstrap, and a textured non-slip surface, this grip helps improve...HKP-99447Now: $10.95Was: $12.95 -
HK MP5 A3 Retractable Buttstock Lever Rebuild Kit
H&K Heckler & Koch
$49.95Heckler and Koch Lever Rebuild Kit for A3 Retractable Buttstocks Rebuild kit for worn out or to complete A3 retractable stocks with metal back plate Compatible with: MP5 HK33 HK91, G3HKP-22547$49.95 -
Out Of Stock
HK91, G3 Trigger Shoe
H&K Heckler & Koch
$12.95HK G3 Trigger Shoe Factory Heckler and Koch G3 trigger shoe. Compatible With: HK G3 PSG1 MSG90 In-spec. clones and custom buildsHKP-22524$12.95 -
HK G36C Parts Kit with Rear Hinge Section - RARE
H&K Heckler & Koch
$5,495.95Heckler and Koch De-milled G36C Parts Kit with Rear Hinge Section - RARE Rare, original HK G36C de-milled parts kit with rear hinge receiver section. A true centerpiece for serious HK collectors and G36C enthusiasts. This is a one-time offering of...HKP-22486-M$5,495.95 -
On Sale
WOOX Edge Stock - Walnut - Picatinny Mount
WOOX
$205.95 - $253.95WOOX Edge Stock - Walnut The WOOX Edge Stock is a premium upgrade for rifles and SMGs featuring a 3 Picatinny stock interface. It blends a precision-machined aluminum body with an American walnut cheek riser for a clean profile, solid lockup, and a...HKP-22460-M$205.95 - $253.95 -
On Sale
HK MP5, SP5 3-Lug Faux Suppressor - Early MP5SD Style
MFI
Now: $133.95Was: $167.95HK MP5, SP5 3-Lug Faux Suppressor - Early classic SD Style MFI replicates the classic appearance of an early MP5SD suppressor. This new design enhances the authenticity of your build for those who aim to replicate a specific era. It is designed to fit...HKP-22439Now: $133.95Was: $167.95 -
HK416, MR556 QD Handguard - A4 Style - 10"
H&K Heckler & Koch
$497.95H&K HK416, MR556 A4 10" Quick Disconnect Handguard Factory HK A4 handguard featuring HK's A4 quick disconnect latch. Compatible with A1 and A4 rifles. Features: Quick disconnect latch for tool-free removal and installation 12 o'clock Picatinny...HKP-22426$497.95 -
On Sale
HK MP5 Case Deflector - 9mm, .40 S&W Receivers
HKP HK Parts
Now: $19.95Was: $24.95HKP HK MP5 Case Deflector - 9mm, .40 Receivers US-made steel case deflector for HK MP5 and MP5K receivers in 9mm and .40 S&W. Installs on the ejection-port flat, rivet or weld, to redirect brass and support reliable extraction on MP5 and MP5K style...HKP-22383Now: $19.95Was: $24.95 -
On Sale
AP51 MOE PR Stock - PDW
Magpul
Now: $211.95Was: $249.95Magpul Century AP51 PDW MOE PR Stock Designed for the Century AP51 PDW platform, this adapter ensures a precise fit and solid lockup for stock installation. Built for durability and proper alignment, it maintains correct stock geometry and function...HKP-22346Now: $211.95Was: $249.95