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
Bolt Knob - Fluted
Tactical Precision MFG
Now: $24.95Was: $48.99TPM - Fluted Bolt Knob These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle. Features: Dimensions:1.5" x 7/8" x 7/8" Weight: 2 oz Threading: 5/16x24HKP-20786Now: $24.95Was: $48.99 -
On Sale
Bolt Knob - Grenade
Tactical Precision MFG
Now: $24.75Was: $48.99TPM - Grenade Bolt Knob TPM grenade bolt knobs are a great way to dress up any rifle. It has a great feel and looks fantastic. Features: Dimensions: 1.90" x 7/8" x 7/8" Weight: 2 oz. Threading: 5/16x24 Made in the USA Compatible...HKP-20770Now: $24.75Was: $48.99 -
On Sale
HKP Hat -Snapback - Flat Brim - OSFM - Black and Red
HKP HK Parts
Now: $13.45Was: $19.95HKP Flat Brim Snapback Hat - OSFM - Black & Red Get your hands on some of our premium hats! Features: Official HKP merchandise 100% cotton Structured 4 sewn eyelets Matching color sweatband Plastic adjustable snap Firm front panel Size: OSFM...HKP-20716Now: $13.45Was: $19.95 -
HK MP5 Trigger Housing - SEF Navy - Clipped and Pinned - .40 S&W, 10mm - USED
H&K Heckler & Koch
$99.95HK MP5 40/10 SEF Navy Style Housing - Clipped & Pinned - USED A perfect upgrade for your HK MP5 40/10 build. This is the only SEF style housing available for the MP5 40/10 family of firearms. Each housing is professionally clipped and pinned...HKP-20618$99.95 -
On Sale
HK Mark 23 Tactical Barrel - .45 ACP - 5.87" - Threaded 16x1 RH
RCM
Now: $228.95Was: $269.95RCM HK Mark 23 .45 ACP Tactical Barrel - Threaded 16x1 RH US made HK Mark 23 tactical threaded barrel for use with a wide variety of flash hiders & sound suppressors. Specifications: Made In The USA Double Stress Relieved Nitrided Finish To...HKP-20606Now: $228.95Was: $269.95 -
Out Of Stock
HK VP Series F3 Trigger - Full Flat Face - Safety Tab Kit
Lazy Wolf
$19.95Lazy Wolf Guns F3 Full Flat Face Trigger Tab and Spring Set for the HK VP Series Replacement trigger safety tab, spring, and roll pin kit as pictured for the HK VP9 series of LWG triggers. Ideal if you need a replacement LWG trigger safety tab,...HKP-20095$19.95 -
Out Of Stock
HK VP Series F2 Trigger - Flat Face - Safety Tab Kit
Lazy Wolf
$19.95F2 Flat Face VP Series Black Trigger Tab and Spring Set from Lazy Wolf Guns Replacement trigger safety tab, spring, and roll pin kit as pictured for the HK VP9 series of LWG triggers. Ideal if you need a replacement LWG trigger safety tab, spring and...HKP-20094$19.95 -
On Sale
HK MP7 A2 Parts Kit
H&K Heckler & Koch
Now: $9,999.95Was: $18,535.95Heckler and Koch HK MP7 A2 Parts Kit - German HK Genuine HK MP7A2 de-milled parts kit. Factory original, un-fired, and ships in the original factory packaging with manuals. Own a rare piece of HK's modern history!HKP-20050Now: $9,999.95Was: $18,535.95 -
Out Of StockOn Sale
Picatinny Harris Bipod Adapter - Extended
HKP HK Parts
Now: $9.95Was: $19.95HKP Extended Harris Bipod Adapter Universal Picatinny rail Harris bipod adapterHKP-15374Now: $9.95Was: $19.95 -
On Sale
Scorpion Stock or Brace Adapter - Tailhook - Mod 1
Gear Head Works
Now: $9.95Was: $19.95GHW Scorpion Tailhook Mod 1 Brace/Stock Adapter This adapter allows the user to mount the Patented Tailhook Mod 1 brace to the factory CZ folding cheek rest. It is injection molded reinforced polymer and can be installed to your choice of 3 positions...HKP-19137Now: $9.95Was: $19.95 -
On Sale
HK UMP Flash Hider - 5 Prong - .40 S&W, .45 ACP
B&T Brugger & Thomet
Now: $116.95Was: $129.95B&T Brugger and Thomet 5 Prong Flash Hider .40 S&W and .45 ACP for HK UMP Each flash hider includes the proper quick detach system to take the flash hider on and off. Each flash hider features a 5 prong design. Specifications: Diameter Max 31...HKP-16891Now: $116.95Was: $129.95 -
HK VP9SK Grip Panel Left Side - Small - Gray
H&K Heckler & Koch
$18.95H&K VP9SK Left Side Grip Panel - Small - Gray New HK German manufactured. Left side small size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SKHKP-18963$18.95