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 MP5SD Barrel Brush Cleaning Tool
HiTec Arms
$119.95HiTec Arms barrel tool for cleaning your HK MP5SD Barrel cleaning brush tool for integrally suppressed ported barrels. This is a good tool to have on hand for any MP5SD owner to clean carbon build up...HKP-21347-M$119.95 -
HK Mark 23 Thread Protector - 16x1 RH
H&K Heckler & Koch
$40.99New factory HK Mark 23 SOCOM thread protector This is the only thread protector that HK offers that will fit the HK Mark 23 Pistol. This is a hard-to-find item and a must-have for all MK23 Owners...HKP-00293$40.99 -
HK45C, HK45T, USPC, USPCT Magazine - .45 ACP - 8 Round
H&K Heckler & Koch
$64.95H&K 8 Round HK USPC/45C .45 ACP Floorplate Brand new German HK manufacture. Compatible With: HK45 Compact, HK45 TacticalHKP-01454$64.95 -
On Sale
GSG5, SIG Magazine Spring - Kimber - 1911 .22LR conversions
GSG German Sports Guns
Now: $1.49Was: $3.95GSG/Sig Sauer/Kimber Magazine Spring German-made spare magazine spring for your 10-round 1911 magazine. Compatible With: GSG5 1911HKP-02795Now: $1.49Was: $3.95 -
HK MP5, SP5 Handguard - OD Green
HKP HK Parts
$39.95HKP HK MP5, SP5 Handguard - OD Green USA MP5 O.D green handguard is also known as the tropical wide forearm. Now you can further customize your MP5/ SP5 with this new color grip and, best of all, it...HKP-20593$39.95 -
Out Of Stock
HK MP5 Spike Front Sight Gen 2 - Luminescent Green
Blitzkrieg Components
$87.95Blitzkrieg HK MP5 Spike Front Sight Gen 2 - Luminescent Green The Blitzkrieg Gen 2 HK-style front sight is engineered to deliver a precise and visible aiming point, enhancing target acquisition and...HKP-21097$87.95 -
HK G36 Magazine Conversion to AR-15 Magwell
H&K Heckler & Koch
$235.99H&K HK G36 to AR-15 Mag Conversion Magwell - Black Simply swap the magazine well from the G36 to this offering and you can then run AR15/M4 style magazine in your G36 or SL8/G36 conversion. Allows...HKP-17605$235.99 -
Out Of Stock
HK VP9 Barrel - 9mm - Threaded 1/2x28
SilencerCo
$189.95SilencerCo HK VP9 9mm Barrel - Threaded 1/2x28 High-quality components and precise manufacturing make SilencerCo parts ideal for maintaining and upgrading firearms. The durability, reliability and...HKP-19434$189.95 -
On Sale
HK UMP Magazine Compliance Kit - .45 ACP
HKP HK Parts
Now: $7.46Was: $19.95US-Made UMP .45 Compliant Magazine Kit For All UMP .45 Magazines This kit is a drop-in replacement set that will give you two US-compliant parts towards 922r compliance. Made from high-impact...HKP-01167Now: $7.46Was: $19.95 -
HK Parts 2 Point Operator Sling
HKP HK Parts
$19.95HKP HK Parts 2 Point Operator Sling 2 point sling similar to the popular Magpul style sling. Made to last and a great sling for the money. Not set up for use on the HK style rifles unless you add...HKP-15375$19.95 -
HK53 Factory Recoil Spring
H&K Heckler & Koch
$14.95HK German HK53 Replacement Recoil Spring This rare spring is a must-have spare for your HK53 firearm.HKP-02228$14.95 -
Out Of Stock
HK MP5, MP5K Optic Mount - 138mm - Low Profile - Extended Picatinny
B&T Brugger & Thomet
$159.95B&T MP5, MP5K Low Profile Picatinny Mount Specifications: Color: Black Height max: 23.5 mmHKP-16876$159.95