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 CC9 Magazine - 9mm - 17 Round
HKP HK Parts / Heckler & Koch
$79.95HK Parts presents this 17 Round 9mm Complete Magazine This fully assembled 17-round magazine for the HK CC9 combines a factory German 12-round magazine with the HK Parts +5 magazine extension...HKP-20339-M$79.95 -
HK MP5, MP5K Optic Mount - Raised - Picatinny - US
HKP HK Parts
$109.95HKP HK MP5 Picatinny Rail Optic Mount HK Parts Picatinny style optic mount for the MP5 or MP5K. Quickly mount any Picatinny optic to your HK while retaining a full view of the factory sights...HKP-21489$109.95 -
HK G36, G36C, G36K, SL8 Barrel Wrench
$139.95Barrel Wrench for HK G36, G36C, G36K, SL8 Barrel wrench designed for all HK G36 and SL8 barrel lengths, from the 9" G36C to the 20" SL8. The tool uses a 3-point contact system for secure engagement...HKP-00283$139.95 -
HK91, G3 Weldment Set Complete
HKP HK Parts
$99.95HK G3, HK91, PTR Weldment Set Complete New US manufactured billeted from solid ordnance grade bar stock. Perfect for roller lock or other custom builds. Each weldment set unit is precisely machined...HKP-17509$99.95 -
Out Of Stock
HK416A5, MR556 A4 Bolt Catch, Release - Enhanced - Ambi
H&K Heckler & Koch
$64.95HK German Enhanced Ambidextrous HK416 A5 Bolt Release Factory HK ambidextrous magazine paddle catch/release. Compatible With: HK416A5 HK MR556HKP-19463$64.95 -
HK33, HK53, HK93, HK91, G3 Rear Sight Base Weldment
HKP HK Parts
$29.95HKP HK Parts Rear Sight Base Weldment for HK G3, HK91, PTR & HK93, 33 & 53, FMP21 New US manufactured billeted from solid ordnance grade bar stock. Perfect for roller lock or other custom builds...HKP-17386$29.95 -
Out Of Stock
HK MP5, MP5K Extractor - 9mm - US
RCM
$29.95RCM MP5 & MP5K 9mm Extractor Made from ordnance grade steel and heat treated. These are the latest F type extractor for all HK MP5/94 bolt heads. Perfect to get that out of spec clone or worn out HK...HKP-20959$29.95 -
HKP 9mm Micro Comp - Threaded 13.5x1 LH
HKP HK Parts
$29.95HKP 9mm Micro Comp - Threaded 13.5x1 LH This lightweight micro comp functional as both a compensator and thread protector. The HK Parts Micro Comp easily attaches to the end of any factory spec 13...HKP-19849$29.95 -
HK UMP, USC Rail Section - Hardware Included
UTG
$24.95UMP, USC Side, Bottom Rail With Mounting Hardware - Aluminum Listing is for one rail. The UMP/USC can use up to 3 of the rails on the forearm section of the firearm. 1 each for the sides and 1 for...HKP-00598$24.95 -
On Sale
Glock 17, 19 Window Magazine - 9mm - 30-Round
AC-Unity
Now: $10.46Was: $19.95AC-Unity 30-Round Glock 17, 19 9mm Window Magazine The AC-Unity 30 round 9mm window magazine for Glock models 17, 18, 19, 19X, 26, 34, 45. Will work in any firearm that accepts a Glock 17 9mm...HKP-20157Now: $10.46Was: $19.95 -
HK P7 Series 4 in 1 Gas Cylinder Cleaning Tool
Other
$21.95P7 Series 4-In-1 Gas Cylinder Cleaning Tool Made from stainless steel and hand-fitted for perfect fitment on each P7 pistol. Each tool features a 4-in-1 (seven tool) and includes a precisely sized...HKP-02080$21.95 -
Out Of Stock
HK45 Thread Protector - 16x1 LH
H&K Heckler & Koch
$24.95H&K .45 ACP Thread Protector - Threaded 16x1 LH The cap fits all HK45 full size & compact barrels threaded 16x1 LH hand thread. A must have item to protect your threaded barrels, exposed threads, and...HKP-00297$24.95