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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HK416, MR556 Muzzle Device - Assault - Closed Tine - 1/2x28
B&T Brugger & Thomet
$109.00B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 Factory B&T 1/2x28 flash hider and suppressor adapter for 5.56 rifles. Includes: ROTEX flash hiderHKP-22217$109.00 -
On Sale
HK CC9 Extended Base Plate
HKP HK Parts
Now: $28.66Was: $44.95HKP CC9 Extended Base Plate This +0 base plate gives your CC9 magazine the extended look and enhanced grip of a full-capacity mag without adding any rounds. Perfect for restrictive states or anyone...HKP-22167-MNow: $28.66Was: $44.95 -
HK CC9 Extractor
H&K Heckler & Koch
$19.95H&K CC9 Extractor Replacement extractor for the CC9 pistol. Removes spent casings and functions as a visual and tactile loaded chamber indicator.HKP-22129$19.95 -
HK CC9 Recoil Spring Support
H&K Heckler & Koch
$5.95H&K CC9 Recoil Spring Support Genuine H&K, this recoil spring support for the CC9 pistol guides and supports the recoil sHKP-22113$5.95 -
HK CC9 Magazine Catch Spring
H&K Heckler & Koch
$5.95Heckler and Koch Magazine Catch Spring for HK CC9 This authentic CC9 magazine catch spring applies tension to tHKP-22107$5.95 -
HK USP Magazine Extension - 9mm - +7 Round
HKP HK Parts
$44.59 - $69.95HK Parts Magazine Extension for your HK USP or HK USPT 9mm +7 Magazine Extension Easy to install. Simply add the mag extension to your existing mag body and follower. No gunsmithing required. Made...HKP-21841-M$44.59 - $69.95 -
HK P30 Conversion Barrel - .40 S&W to 9mm - Threaded - 1/2x28
RCM
$214.95RCM HK P30 .40 to 9mm Conversion Barrel - Threaded - 1/2x28HKP-21791$214.95 -
On Sale
HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED
H&K Heckler & Koch
Now: $2.22Was: $5.95HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLYHKP-03330-USEDNow: $2.22Was: $5.95 -
HK UMP Flash Hider - Birdcage Style - 5/8x24
HKP HK Parts
$49.95HKP HK UMP Flash Hider - Birdcage Style - 5/8x24 We are pleased to present the HKP UMP birdcage flash hider, designed specifically for our UMP 45 parts kit. This exceptional accessory not only...HKP-21579$49.95 -
HK MP5 Folding Stock - MBT
B&T Brugger & Thomet
$650.00B&T Brugger and Thomet MBT Stock for HK MP5 B&T MBT folding stock for HK MP5. Polymer stock and adapter.HKP-21422$650.00 -
Out Of Stock
HK UMP Stock Block B Push Pin
HKP HK Parts
$34.95Stock Block B Sling Pin With Loop washer & Quick Pull Pin for UMP/USC (.40 S&W/ .45 ACP/9mm)HKP-21249$34.95 -
HK VP9 Match Barrel - 9mm - 6.1" - Threaded 13.5x1 LH
RCM
$262.50RCM HK VP9 Match 9mm Barrel - Threaded 13.5x1 LH RCM threaded match barrel for the HK VP9 Match. Machined from fully heat-treated 4140 ordnance-grade steel and finished inside and out with a nitrided...HKP-21068$262.50