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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HK P2000, USPC Magazine - 10 Round - .40 S&W
H&K Heckler & Koch
$54.99 - $59.95H&K 10 Round HK P2000/USPC .40 S&W Magazine Factory HK German 10 Round magazine. Compatible With: HK USP Compact .40 S&W HK P2000 .40 S&W HK P2000 SK (will fit below the bottom of the magwell)HKP-00311-M$54.99 - $59.95 -
HK33, HK53, HK93, HK91, G3 Complete Buttstock Buffer Assembly
H&K Heckler & Koch
$24.95HK33, HK53, HK93, HK91, G3 Complete Stock Buffer Assembly - All Mounting Hardware Each unit comes with all of the mounting hardware for installing the G3 buffer to your backplate assembly. Also fits the HK93, 33, and 53 fixed stocks as well (use the same...HKP-00362$24.95 -
HK MP5, HK94 Complete Weldment Set For Receiver Flat
HKP HK Parts
$59.95HKP MP5/HK94 Complete Weldment Set For Receiver Flat This is the finest, most correct weldment set for your HK MP5, 94 project available. Each Weldment Kit Contains: 1x Semi Auto Shelf Hanger Block 1x Rear stock bushing 1x Scope mounting piece 1x...HKP-01453$59.95 -
HK MP5, HK94 Folding Stock - UMP Style
B&T Brugger & Thomet
$279.95B&T MP5 & HK94 UMP Style Folding Stock New Swiss/German HK Made B&T Folding Stock for the MP5/ SP5 full size. These are hard to find and the real deal. 100% Swiss & German HK made. This is a military-grade stock. B&T Switzerland has...HKP-16928$279.95 -
HK USP, USPT Magazine with Extension - .40 S&W - 18 Round
HKP HK Parts
$79.95HKP/H&K USP/T .40 S&W 18 Round Complete Magazine With Extension HK Parts magazine extension adds 5 additional rounds to the full size USP & USP Tactical, 13 round magazine. Each unit is then fully assembled as an 18 round magazine. Ideal for...HKP-18643-M$79.95 -
HK MP5K, SP89, SP5K Handguard with Handstop
HKP HK Parts
$29.95MP5K, SP89, SP5K, Reverse Stretch Forearm With Hand Stop Each forearm will fit the MP5K or SP89 style of firearms. As an added bonus, this item counts as a US made part toward 922r compliance. Each forearm has the latest enhancements and upgrades...HKP-16466-M$29.95 -
Ultra Gun Oil - AntiVenom XPLC - Lubricant and Cleaner
Strike Industries
$14.95AntiVenom-XPLC Lubricant and Cleaner Strike Industries introduces the industry's most extreme general-purpose weapons lubrication, cleaning, and protection solution. Strike Industries AntiVenom-XPLC is the culmination of years of research and...HKP-18410$14.95 -
HK MP5, AP5 Handguard
MKE
$39.95MKE HK MP5 AP5 Handguard The AP5 handguard is designed to fit the MKE AP5 and HK MP5 firearms. This handguard provides a secure grip and a factory-correct appearance. It provides a reliable and durable option for replacing or upgrading an MP5-style...HKP-21810$39.95 -
HK VP9 Magwell - Tactical Low Profile - Steel
HKP HK Parts
$59.95 - $74.95HKP HK VP9 Magwell - Tactical Low Profile - Steel Low profile, every day carry magwell for the HK VP9/VP40 pistol. The low profile mag-well is designed for the average every day VP owner. Whom would like the enhancements and competitive advantage a...HKP-18545-M$59.95 - $74.95 -
Out Of Stock
HK MP5 Bolt Group, Complete - 9mm - Full and Semi
RCM
$409.95Complete Bolt Group - RCM - HK Style MP5 9mm Ideal to replace out of spec, worn or broken bolt groups or for that custom build. This is the finest US BCG available. Each bolt group comes complete, assembled ready to go. Includes: Bolt head complete 100...HKP-19317$409.95 -
HK45, HK45 Compact Ambidextrous Control Lever Kit
H&K Heckler & Koch
$69.95Factory HK German Genuine HK45 & HK45C Ambidextrous Control Lever Kit A must-have upgrade for those who would like to have the ability of both left and right side control levers. Hard to find, easy to install as this is a drop-in part - no...HKP-01154$69.95 -
HK416, MR556, G36 Gas Piston - Complete
H&K Heckler & Koch
$59.99H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston New HK German gas piston assembly with three locking piston rings installed. This is a great spare part to have on hand, as the gas piston takes a lot of wear and tear. Compatible With: HK...HKP-00047$59.99