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 MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HKP
HKP HK Parts
$49.95HKP MP5K/SP89/SP5K 9mm End Cap - HK Style This end cap is an identical reproduction of the factory end cap and features the original HK style buffer. Compatible With: MP5K SP5K SP89 In spec. clones and custom buildsHKP-16135$49.95 -
HK MP5, MP5K Selector Lever, Left Side - Navy Trigger Groups
H&K Heckler & Koch
$399.95H&K Standard 4 Position Burst Left Side Selector Lever Compatible with any of the 0, 1, 3, F or 0, 1, 2, F trigger packs. Brand new HK German part. No longer available so get them while you can.HKP-00123$399.95 -
HK MP5 Barrel - 9mm - Threaded 1/2x28 with 3 Lug
B&T Brugger & Thomet
$378.95B&T HK MP5 9mm Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, these MP5 barrels are cold hammer forged, fluted, and nitrided to exact HK specifications. B&T's close relationship with H&K and extensive history of...HKP-17955$378.95 -
HK Lever - Selector - 0,1 - Extended - Ambidextrous
H&K Heckler & Koch
$78.95HK German Left Side Ambidextrous EXTENDED (ESSL) FBI (0,1) Lever New German HK extended selector lever for the left side of all safe and semi-ambidextrous trigger packs SP5K. Compatible With: MP5, 94 MP5 clone and custom buildsHKP-00124$78.95 -
On Sale
HK MP5, 90 Series Locking Plate for Rollers
USA
Now: $3.95Was: $8.95Special Weapons HK MP5, 90 Series Locking Plate for Rollers SOLD INDIVIDUALLY This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use and age of the service weapon. Compatible With: MP5,...HKP-99399Now: $3.95Was: $8.95 -
On Sale
HK Mark 23 Compensator - Non-Threaded
HKP HK Parts
Now: $124.95Was: $199.95HKP HK Mark 23 .45 Cal Non-Threaded Compensator The HK Parts mark 23 compensator will add a sleek and tactical look to your MK23. With the quick and easy addition of our compensator you will add plenty of benefits. This compensator reduces recoil and...HKP-20821Now: $124.95Was: $199.95 -
HK SP5 German Folding Stock with HK Parts Adapter
HKP HK Parts / Heckler & Koch
$299.95German Folding Stock with HK Parts Adapter - SP5 German folding stock with a SP5 HK Parts adapter. The HK Parts adapter is made from a solid billet of CNC machined aircraft grade aluminum and offers a QD attachment point. This will be a drop in stock for...HKP-20645$299.95 -
HK SP5 Trigger Housing - SEF Navy - 9mm Spec Only - Clipped and Pinned
H&K Heckler & Koch
$179.95H&K Heckler and Koch SP5 9mm Spec Only SEF Navy Style Trigger Housing - Clipped and Pinned Fits only HK SP5 9mm. This trigger house is for use with SEF style trigger packs. This will not work with the ambidextrous style trigger pack that comes with...HKP-19233$179.95 -
HK417, MR762, G28 Adjustable Buttstock Set - RAL8000
H&K Heckler & Koch
$589.95H&K HK MR762, HK417, G28 Adjustable Buttstock Set - RAL 8000 HK G28 adjustable stock kit complete with the necessary parts convert a stock MR762 or HK417 to G28 spec. Includes: G28 fully adjustable stock G28 buffer tube/receiver extension G28...HKP-16760$589.95 -
HK VP9, P30, HK45C HD Night Sight Set - Yellow
Trijicon
$169.95Trijicon HK VP, P30, HK45C HD Night Sight Set - Yellow The HD Night Sights were specifically created to address the needs of tactical shooters. The three-dot green tritium night sight set front sight features a taller blade and an aiming point ringed in...HKP-14558$169.95 -
HK P30SK 9mm Complete Recoil Spring Assembly
H&K Heckler & Koch
$64.95HK P30SK 9mm Complete Recoil Spring Guide Rod Assembly Brand new HK German manufacture. Compatible With: P30SK 9mmHKP-17938$64.95 -
HK USC Magazine Release
H&K Heckler & Koch
$19.95Heckler and Koch .45 ACP Carbine Magazine Release for HK USC This is a great replacement as they are prone to breakage and wear. Please Note: For those that have a HK USC with a bullet button and are moving to a free state and want to revert back to the...HKP-02196$19.95