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 Dual Folding Stock with Adapter - 9mm
HKP HK Parts / Strike Industries
Now: $274.95Was: $319.95HKP HK Parts and Strike Industries 9mm Dual Folding Stock with Adapter for HK MP5 The Strike Industries Dual Folding Stock paired with the HKP MP5 picatinny adapter is one of the best options on the market for those looking for a light,...HKP-21768-MNow: $274.95Was: $319.95 -
Out Of Stock
BT-20506, 20411 - GHM9, GHM45, KH9 Brace Conversion Kit
B&T Brugger & Thomet
$130.00Brace Conversion Kit for BT-20506/20411(GHM9/GHM45/KH9) Easily convert your B&T folding stock into a brace-compatible setup with this precision Brace Conversion Kit, designed for use with BT-20506 and BT-20411 stock assemblies. This kit enables...HKP-21736$130.00 -
On Sale
B&T TP9N Foregrip
B&T Brugger & Thomet
Now: $89.95Was: $100.00B&T TP9N Foregrip Factory B&T black foregrip for the TP9N firearm. Compatible With: B&T TP9NHKP-21719Now: $89.95Was: $100.00 -
On Sale
HK416 A5 Flash Hider - .22 LR
HKP HK Parts
Now: $47.95Was: $59.95HKP HK 416 .22 LR A5 Flash Hider Our HK Parts A5 flash hider is a directly mounted upgrade that will enhance the appearance of your 416 .22LR build, perfect for those aiming to achieve an authentic A5 style. It comes with an O-ring for secure attachment,...HKP-21575Now: $47.95Was: $59.95 -
On Sale
HK416, MR556, HK417, MR762 Pistol Grip - K2 XL
Magpul
Now: $18.95Was: $22.95Magpul Moe K2 XL AR Grip Designed for shooters with larger hands, the K2-XL Grip is similar to the MOE-K2 Grip – AR15/M4 but nearly 25% bigger. A drop-in upgrade for the AR15/M4, it offers a more vertical grip angle thereby improving comfort...HKP-21554Now: $18.95Was: $22.95 -
On Sale
HK G36 Flash Hider with Interface for Rotex
B&T Brugger & Thomet
Now: $115.95Was: $144.99B&T G36 (5.56/.223) Flash Hider with Interface for Rotex Compatible With: HK G36 HK93, HK33 5.56/.223 firearms threaded 15X1 RH Specifications: Made in Switzerland Threaded 15x1 RH Does not include face shimsHKP-21531Now: $115.95Was: $144.99 -
HK91, G3 Extractor - Used
H&K Heckler & Koch
$6.85HK German HK G3, HK, 91 & PTR 91 .308 Extractor - Used Surplus HK German extractor. Fits all models of HK G3 style firearms and CETME's. Compatible With: HKG3 HK91 PTR models Clones and other custom builds CETME & C308'sHKP-21507$6.85 -
On Sale
HK MP5, MP5K Stock and Dual Folding Adapter - Picatinny
Strike Industries
Now: $169.95Was: $199.95Strike Industries Dual Folding Stock This Strike Industries stock is ideal for MP5 or MP5K platforms featuring a 1913 Picatinny rail interface. Conveniently compatible with any platform featuring a Picatinny backplate. It offers quick, easy, and...HKP-21306Now: $169.95Was: $199.95 -
Out Of Stock
HK Fray Fixed Blade Knife
H&K Heckler & Koch
$169.95Features: • Frame: Black OverMolded Rubber Scales (Includes Black Paracord - 1/8" Diameter)• Tail Jimping: Provides for better traction in reverse grip• Includes Automatic Retention Sheath (1.7 oz weight) Blade:• Style: Clip...HKP-21283$169.95 -
On Sale
HK MP5, SP5 Binary Trigger Group - Ambi - BFSIII - 9mm
FA Franklin Armory
Now: $1,424.95Was: $1,899.95Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – Ambi 3 Position Housing 3 Position – pictogram – HK binary trigger group Binary triggers count as 4 922r compliant components. The components that count towards 922r...HKP-19182-MNow: $1,424.95Was: $1,899.95 -
On Sale
Muzzle Brake - Titanium 3 Port .30 Cal
Tactical Precision MFG
Now: $42.95Was: $84.99TPM - Titanium 3 Port Muzzle Brake .30 Cal This radially ported muzzle brake is for Ruger American and many other lightweight mountain rifles. Features: Weight:0.67 oz Material: Grade 5 titanium Color: Black Threading: 5/8x24HKP-20777Now: $42.95Was: $84.99 -
On Sale
HKP Racerback Tank - Mint
HKP HK Parts
Now: $7.46Was: $14.95HKP Racerback Tank - Mint Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this racerback is certain to catch an eye at the range! Features: Female fit Fine cotton High fidelity DTG...HKP-21029-MNow: $7.46Was: $14.95