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 StockOn Sale
HK MP5, SP5 Lighted Handguard - 328LMF - Like New
Surefire
Now: $419.95Was: $519.95Surefire - 328LMF - Lighted Handguard - Like New The SureFire 328LMF-B is the top-tier replacement for the original handguard. These units are the ideal choice for anyone running MP5s who demand the best performance in the field. They are in outstanding...HKP-21659Now: $419.95Was: $519.95 -
HK MP5K Folding Brace - Skeletonized
B&T Brugger & Thomet / SB Tactical
$239.95SB Tactical - B&T - HK MP5K Swiss Folding Brace - Skeletonized Factory Swiss B&T MP5K, SP5K folding pistol brace with the SB tactical/ B&T components assembled. A rare offering using the B&T Swiss manufactured folding polymer end cap with...HKP-21054$239.95 -
HKP 2 Point Leather Sling - OD Green
HKP HK Parts
$49.95HKP 2 Point Leather Sling - OD Green These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan. Made in the USA from quality leather and...HKP-20164$49.95 -
On Sale
Sig Sauer P365 Stand Off Device
HKP HK Parts
Now: $49.95Was: $119.95HKP SIG P365 Stand Off Device The HK Parts P365 standoff is designed to keep the slide in battery to allow discharge when the firearm is pressed against or comes into contact with an object. It is an excellent self-defense addition. Each unit is...HKP-19284Now: $49.95Was: $119.95 -
On Sale
HKP Shirt - Short Sleeve- Green
HKP HK Parts
Now: $8.95Was: $14.95HKP Short Sleeve Shirt - Green Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the range! Features: Unisex fit Fine cotton High fidelity DTG...HKP-21022-MNow: $8.95Was: $14.95 -
HK416 Ejection Port Axle
H&K Heckler & Koch
$4.95Ejection Port Axle - Steel- HK 416 New HK USA manufacture for the HK 416 family of firearms. This is the axle that holds the ejection port cover in place on the upper receiver.HKP-20039$4.95 -
HK45C, HK45CT Barrel - .45 ACP - 4.5" - Threaded 16x1 LH
H&K Heckler & Koch
$339.95Heckler and Koch HK45 Compact Tactical Barrel - Threaded 16x1 LH New HK German HK45C threaded tactical barrel. A drop in barrel for the HK45 compact firearm. Features: Heckler and Koch Genuine Part Threaded For Use With Suppressors Threaded 16x1 LH Cold...HKP-01036$339.95 -
HK45, HK45T Magazine - .45 ACP - 13 Round - Red
HKP HK Parts
$89.9513 Round HK 45/45 Tactical .45 ACP Magazine - Red HK45 & HK45 Tactical +3 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a 13 round HK45, HK45 Tactical magazine. Ideal for concealed carry,...HKP-18386$89.95 -
HK USPC, P2000 Magazine - .40 S&W - 10 Round - Flat Floorplate
H&K Heckler & Koch
$59.00H&K 10 Round HKP2000/USPC .40 S&W Flat Floorplate Magazine New HK German manufacture. Compatible With: HK USP Compact .40 S&W HK P2000 .40 S&WHKP-02377$59.00 -
HK91, G3 Complete F/A Bolt Group - Used
H&K Heckler & Koch
$259.95HK Factory German G3, 91, PTR F/A Bolt Group - Complete Used Everything you need as a spare or a direct replacement of your existing bolt group. This bolt group is a direct replacement of all HK G3, HK91, SAR3/8, PTR-91, C91, Clones, Etc. Bolt...HKP-00356$259.95 -
MP5, SP5 - A2 Fixed Stock-Green
Michaels Machines
$199.95MP5 A2 Fixed Stock - USA - OD GREEN Each stock counts as one US made 922r compliant part. Simply the best US made MP5 stock featuring a rubberized backplate that reduces felt recoil as well as carrier abuse. Ideal for use with +P ammunition or MP5 40/10...HKP-18804$199.95 -
HK21, HK11 Trunnion
RCM
$274.95RCM HK21 Trunnion When RCM set out to make a replacement trunnion for the venerable HK21, they started the process by putting a factory unit through rigorous destructive metal testing. The end-product: a US-made trunnion blending the proper...HKP-21609$274.95