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 USP .45 ACP Extractor
H&K Heckler & Koch
$49.95HK German Extractor for USP 45 & USP Tactical .45 Full Size Pistol Compatible With: USP 45 USP 45 Tactical USP 45 Expert, EliteHKP-01275$49.95 -
HK G36 Carrying Handle, Incomplete - No Single Optic
H&K Heckler & Koch
$149.95HK G36, SL8 Single Optic Carrying Handle Incomplete The optic housing- no optic included.HKP-16379$149.95 -
HK G36, SL8 Bolt Group Fork
H&K Heckler & Koch
$12.95HK G36 & SL8 Bolt Group Fork For Cocking HandleHKP-01859$12.95 -
HK21E, HK11E Firing Pin - Titanium
HKP HK Parts
$49.95HK21E, MM21E, 11E Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest,...HKP-17771$49.95 -
HK33, HK93, G3K Tactical Handguard
PTR
$129.95HK 33, 93, G3K & PTR (shorter length) Tactical Hand Guard - US Made This robust tactical forearm allows the addition of either 2, 3, 4, or 6-inch bottom and side rails, giving you the greatest ability to customize your rails and configuration of any...HKP-00367$129.95 -
HK Bolt Locking Lever Pin - Cylindrical Pin
H&K Heckler & Koch
$4.95Heckler and Koch Bolt Locking Lever Pin/Cylindrical Pin New HK91, G3, PTR-91 .308 & HK 93, 33, 53 Bolt Carrier Bolt Locking Lever pin (cylindrical pin). This item holds the locking lever & spring in place on the actual bolt head.HKP-16913$4.95 -
HK MP5K Parts Kit - 9mm - Pistol Build
HKP HK Parts
$1,889.95MP5K, MP5K-N Style Pistol Build Kit Complete The finest USA and German-made parts for a complete parts kit for an MP5K, MP5K-N pistol build. Each Kit Includes The Following HK Parts: Barrel - 5.5" button rifled, 3-lugged & threaded 1/2x28 with...HKP-02604$1,889.95 -
HK91, G3 Cocking Tube with Hanger - Ribbed -Used
H&K Heckler & Koch
$34.95HK German HK G3 & HK 91 Ribbed Cocking Tube With Hanger Installed - Used Used surplus condition, take-offs from demilled G3 firearms. They may have dings, dents, and heavy wear. Still in serviceable condition or perfect for projects. Fair Condition...HKP-00719$34.95 -
WARCOMP Flash Hider - 5.56 / .223 - Threaded 1/2x28
Surefire
$159.95SureFire (5.56/.223) WARCOMP Flash Hider - Threaded 1/2x28 This AR15 flash hider is compatible with 1/2x28 threaded barrels. Specifications: Stainless steel DLC coating Length 2.7 inches Threaded 1/2x28 Compatible With: HK 416/MR556/MR223 HK...HKP-18044$159.95 -
Barrel Bore Cleaning Brush - 5.56 / .223
HKP HK Parts
$1.95Bore Cleaning Brush For .223/556 CalibersHKP-03331$1.95 -
On Sale
HK MP5, 90 Series Locking Plate for Rollers
Special Weapons
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 -
HK MP5, MP5K Cocking Handle - Knurled - Extended
Leapers - UTG
$29.97HK MP5, MP5K Cocking Handle Extended Extended cocking handle for the MP5 style of firearms. These cocking handles also count towards one US made component for 922r compliance. Made by UTG to work with their monolithic M-LOK handguards...HKP-22421$29.97