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
HK51, PTR PDW Folding Stock
Choate
Now: $206.06Was: $228.95Choate PTR PDW (7.62x39) & (7.62x51 /.308) Folding Stock New HK Choate side folding stock complete with sling swivel, new German HK backplate, and ready to drop on your favorite HK rifle. No gunsmith...HKP-14348Now: $206.06Was: $228.95 -
Out Of Stock
HK MP5 Bolt Catch Lever - .40 S&W, 10mm
H&K Heckler & Koch
$74.95H&K Heckler & Koch Bolt Hold Open Lever - German HK - New for MP5 40, MP5 10 A great upgrade for the out-of-spec and sub-par quality part found on clone builds.HKP-01471$74.95 -
Barrel Bore Cleaning Brush - 9mm / 10mm / .40 S&W
$13.95Universal Bore Cleaning Brush - 9mm/10mm/.40 S&W The HK combination brush was designed exclusively to clean the HK 9mm and 10mm fluted chamber and bore with one easy stroke. This brush has brass and...HKP-00917$13.95 -
On Sale
HK MP5SD Parts Kit - Pistol Build - 9mm - Receiver Flat and Weldment Set
HKP HK Parts
Now: $2,024.96Was: $2,249.95HKP HK MP5SD Kit - Pistol Build - 9mm MP5SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts. This is...HKP-18052Now: $2,024.96Was: $2,249.95 -
On Sale
HK34 Cocking Tube
HKP HK Parts
Now: $143.96Was: $159.95HKP HK34 Cocking Tube HK34 Length Cocking Tube. Made in the USA from German & US made components. Each unit comes as pictured with the MP5/94 style locking location and hanger installed. The HK34...HKP-16444Now: $143.96Was: $159.95 -
On Sale
HK MP5, SP5, MP5K, SP5K Cocking Handle - Extended - Enhanced
HKP HK Parts
Now: $31.97Was: $39.95HKP HK MP5, MP5K Extended Cocking Handle - Enhanced HKP extended and enhanced cocking handle for HK MP5 and MP5K pattern firearms. Machined from a solid steel billet and salt-bath nitride finished,...HKP-22864Now: $31.97Was: $39.95 -
Out Of Stock
HK VP9 Match SCS Slide Kit
H&K Heckler & Koch
$755.00H&K VP9 Match SCS Slide Kit Upgrade your VP9 with precision and performance using the H&K VP9 Match SCS Slide Kit. This factory upgrade includes a precision-machined match slide, extended barrel, and...HKP-21911$755.00 -
On Sale
Harris Bipod Adapter - Picatinny - US
HKP HK Parts
Now: $7.46Was: $33.95Harris Bipod Adapter This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-mounting bipods. This will fit any Picatinny spec rail or rail system. Made...HKP-21528Now: $7.46Was: $33.95 -
HK USP Magazine with Extension - 25 Round - 9mm
HKP HK Parts / Heckler & Koch
$119.95HKP 25 Round HK USP 9mm Magazine HK Parts +10 magazine extension coupled with a 15 round magazine. Each unit is then fully assembled as a 25 round magazine. Ideal for competitive shooters, concealed...HKP-21357-M$119.95 -
On Sale
HK45C International Holster - Comp Carry
Comp-Tac
$57.34 - $80.96Comp-Tac HK45C International Comp Carry Holster At last a custom made Comp-Tac International OWB holster for your HK pistol that allows you to have the Rail Mount Compensator, Comp Weight, or Match...HKP-20869-M$57.34 - $80.96 -
B&T APC9, APC10, APC45 Telescopic Stock Buttpad
B&T Brugger & Thomet
$165.00B&T APC9, APC10, APC45 Telescopic Stock Buttpad B&T telescopic stock replacement buttpad. Can also be used to convert a B&T telescopic brace to a stock. Compatible With: B&T APC9, APC10,HKP-19968$165.00 -
On Sale
HK P30 Compensator - Quick Detach
HKP HK Parts
Now: $74.96Was: $199.95HK P30, P30S - Quick Detach Comp Weight™ - 9mm & .40 Cal - Steel Version Easy on, easy off - Quick Detach technology The perfect addition to your HK P30 firearm with our low profile, aggressive Comp...HKP-18469Now: $74.96Was: $199.95