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 Bolt Carrier - Full Auto - 9mm
RCM
$146.95MP5 9mm Full Auto Bolt Carrier - RCM New US RCM manufactured MP5, 94 F/A carrier with all current "F" style upgrades and tungsten filled for the best performance and the utmost reliability. They were machined completely from billet ordnance grade steel...HKP-01188$146.95 -
HK Armorer's Tool Kit
HKP HK Parts
$67.95HKP Armorer's Tool Kit Includes: HK Parts Armorers Puck Punch Bench Block Tool 8 Piece German Rennsteig punch set 20 Piece German Feeler gauge setHKP-18659$67.95 -
HK UMP, B&T APC Stock - Folding
H&K Heckler & Koch
$138.95HK German UMP Folding Buttstock Brand new German HK folding stock. This is a required part for the USC-UMP Conversion using the (stock block B). All UMP folding stocks come with an HK date code. Compatible With: HK UMP .45 HK UMP .40 HK UMP 9mm HK...HKP-00252$138.95 -
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 the bottom for a total of 3 rails. Each rail is made from...HKP-00598$24.95 -
Pistol Rug Case - Bundesadler
HKP HK Parts
$19.95HKP Pistol Rug - Bundesadler Keep your handgun safe with the HK Parts pistol rug featuring the iconic German Bundesadler crest. This heavy duty pistol case will accommodate one pistol and up to 5 magazines. Features: Measures 8x13" closed and...HKP-21014-M$19.95 -
HK G36, G36C, G36K, SL8 Barrel Wrench
USA
$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 and proper torque transfer on the barrel nut. A 3/8"...HKP-00283$139.95 -
Out Of Stock
HK91, G3 Locking Piece #17 - 36 Degree
RCM
$49.99RCM HK G3 HK91 36 Degree Locking Piece #17 One of the best ways to slow down and tame that HK21. Can also be used for HK91 and G3 special projects such as suppressors, and heavier than normal loads. This is also the factory correct locking piece...HKP-02520$49.99 -
On Sale
Glock 17 - Magazine Extension Kit - 9mm - +6 Round
HKP HK Parts
Now: $17.21Was: $34.95HKP Glock 17 - +6 Round 9mm Magazine Extension Kit Designed to fit all of the Glock 17 models from Gen 1 through and up to the current Gen 5 models. Each unit is fully machined from a solid billet of aircraft-grade aluminum that is fully hard coat...HKP-18348-MNow: $17.21Was: $34.95 -
HK MP5SD Barrel Shroud - Enhanced
HKP HK Parts
$129.95HKP MP5SD weldable suppressor shroud for HK MP5 SD builds The HKP SD shroud is fully de-burred with the handguard attachment lugs being machined in from the outset, not welded, which is commonly found in aftermarket-style shrouds. Specifications: Made...HKP-15701$129.95 -
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. Available exclusively at HK Parts. Compatible With: HK...HKP-21489$109.95 -
HK USP Magazine - Jet Funnel - 9mm - 18 Round - Translucent
H&K Heckler & Koch
$68.95H&K USP 9mm 18 Round Jet Funnel Magazine - Translucent Each magazine will fit all HK USP 9mm full-size pistols as well as the HK 9mm Expert, Tactical, and Elite. This item can be used with or without the jet funnel magwell installed. Compatible...HKP-00317-M$68.95 -
HK MP7 Magazine - 4.6x30mm - 30 Round
H&K Heckler & Koch
$81.95MP7 30 Round Magazine New factory German HK 30-round magazine for the 4.6x30mm HK MP7A1 & MP7A2 weapon system. This is a popular spare magazine option as it is not too large and not too small of capacity.HKP-02455$81.95