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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Out Of Stock
HK MP5, MP5K Telescopic Buttpad
B&T Brugger & Thomet
$190.00B&T HK MP5, MP5K Telescopic Buttpad - Brace Conversion B&T replacement stock buttpad. Also used to convert B&T's telescopic brace to a stock (BT-200601) Compatible With:HKP-21384$190.00 -
M-LOK Foregrip - Skeleton
JMAC Customs
$89.95JMAC Universal M-LOK Skeleton Forward Grip Can be used as a forward grip or a handstop! Features: Reversible and Lightweight M-LOK CompatiHKP-21240$89.95 -
HK45C International Holster - Comp Carry
Comp-Tac
$89.95Comp-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$89.95 -
HK MP5K, SP89, SP5K Mounting Arm, Tailhook Mod 1
Gear Head Works
$204.95Gear Head Works HK MP5K, HK SP5K Tailhook Mounting Arm Want the look of the original MP5k-PDW but without the stamp. Now you can have not only the look, but the same quality and operation in a pistol...HKP-19135$204.95 -
HK P30 Tactical Barrel - .40 S&W - 4.45" - Threaded 9/16x24 RH
RCM
$225.00RCM HK P30 .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest...HKP-16714$225.00 -
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 -
HK51, PTR PDW Folding Stock - Adjustable
Choate
$239.95Choate PTR PDW and HK51 Tactical Folding Stock - Adjustable The adjustable length system lets smaller-stature shooters or officers wearing body armor have a weapon that fits their needs. This stock...HKP-14537$239.95 -
HK MK23 Pistol Grip - Granulate
Talon Grip
$19.99TALON Grip - MK23 - Granulate Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control...HKP-20263$19.99 -
HK G3, HK417 Muzzle Brake - SOCOM - Threaded 5/8x24
Surefire
$164.95SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 The SureFire muzzle brake is designed for Armalite AR-10, DPMS LR308, and other 7.62 mm rifles with 5/8x24 muzzle threads. It greatly...HKP-19789$164.95 -
HK MP5, MP5K Rear Sight Base - MIM and Machined
H&K Heckler & Koch
$14.95Heckler and Koch Rear Sight Base - Weldment for HK MP5 and HK MP5K New HK MP5, MP5K 17-4 Stainless H900 rear sight base. The most correct MP5, MP5K rear sight base available. The only factory...HKP-19705$14.95 -
HK USPC Tactical Barrel - .40 S&W - 4.28" - Threaded 9/16x24 RH
RCM
$225.00RCM HK USPC .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each USPC .40 S&W tactical barrel is meticulously crafted from ordnance grade steel, heat-treated, and finished with a durable nitride...HKP-16707$225.00 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip Screw
H&K Heckler & Koch
$9.95Heckler and Koch HK MR556/MR762/416/417 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With:HKP-02679$9.95