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 MP5, MP5SD Cocking Tube Support - Universal - Steel
HKP HK Parts
$64.95MP5SD, MP5 Universal All Steel Cocking Tube Support 9mm - USA Made from ordnance grade stainless steel from the factory HK German print & specs. An HK German quality part at a great price point. Each...HKP-18089$64.95 -
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 -
On Sale
HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring
MKE
Now: $15.96Was: $19.95MKE HK MP5, MP5K, AP5 Steel Firing Pin and Spring Replacement Kit Replacement steel firing pin and spring kit for HK MP5 platforms. Direct-fit parts for repairing or replacing worn firing components...HKP-99344Now: $15.96Was: $19.95 -
On Sale
HK MP5, MP5K Optic Mount - 138mm - Low Profile - Extended Picatinny
B&T Brugger & Thomet
Now: $135.96Was: $159.95B&T MP5, MP5K Low Profile Picatinny Mount Specifications: Color: Black Height max: 23.5 mmHKP-16876Now: $135.96Was: $159.95 -
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 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 -
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 -
HK MP5, HK90 Series Trigger Spring - SEF and Navy - 3 Position - Surplus
H&K Heckler & Koch
$4.95HK 90 Series SEF & Navy Style Trigger Return Spring - Surplus For HK 90 series (semi or full-auto). This item will fit any NON-burst trigger pack. Compatible With:HKP-01092$4.95On Sale
Picatinny Angled Foregrip - AFG-2
Magpul
Now: $30.56Was: $33.95Magpul AFG2 Angled Fore Grip for Picatinny Rail Made in the USA, the AFG-2 (Angled Fore Grip) is a slim line design that is shorter in overall length and width in comparison to the original AFG. By...HKP-10655Now: $30.56Was: $33.95
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