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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out Of Stock
HK UMP Parts Kit - .45 ACP
HKP HK Parts
$1,299.95HK UMP Parts Kit - .45 ACP The HK Parts UMP parts kit includes everything needed to build out an iconic HK UMP from a stripped receiver. Guaranteed to be the most cost-effective way to get your...HKP-21433$1,299.95 -
Out Of Stock
HK VP9 Tactical Barrel - 9mm - 4.45" - Threaded 1/2x28
RCM
$225.00RCM HK VP9 9mm Tactical Barrel - Threaded 1/2x28 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded...HKP-16849$225.00 -
On Sale
HK MP5, AP5 Handguard
MKE
Now: $35.96Was: $39.95MKE HK MP5 AP5 Handguard The AP5 handguard is designed to fit the MKE AP5 and HK MP5 firearms. This handguard provides a secure grip and a factory-correct appearance. It provides a reliable and...HKP-21810Now: $35.96Was: $39.95 -
HK91, G3 Firing Pin
H&K Heckler & Koch
$19.95HK G3, HK91, PTR 762/.308 Firing Pin HK German, new factory part made from steel. Great for spares as this is a common wear item. Compatible With: HK G3HKP-00497$19.95 -
Trigger Pack Hammer Spring - Extra Power - 5.56 / .223 - 7.62x51 / .308
H&K Heckler & Koch
$14.95H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power New HK German extra power hammer spring for all .308/.223 Semi & Full Auto Trigger Packs. This is a must have spare replacement part for youHKP-16447$14.95 -
HK MP5 Magazine - 30 Round - .40 S&W, 10mm
H&K Heckler & Koch
$199.95H&K Heckler and Koch New HK German 30 Round Magazine HK MP5 40,10 Factory German MP5 40,10 magazine will fit all of the HK MP5 40,10 rifles and pistols, including the Vector, Coharie, and other...HKP-00430$199.95 -
HK417, MR762, G28 Buffer Tube Wrench
HKP HK Parts
$29.95HKP HK MR762/417/G28 Buffer Tube Wrench The perfect metric wrench to remove and install the MR762 & G28 castle nuts on the buffer tube. A perfect addition to have on hand for G28 buffer tube...HKP-17111$29.95 -
On Sale
HK USP Optic Plate - Burris FastFire - Red Dot Pistol Mount
HKP HK Parts
Now: $39.97Was: $49.95HKP HK USP Red Dot Pistol Mount Red Dot mounting plate to allow the use of a Burris Fast Fire, Docter, Vortex Venom or other similar specs Red Dot Sights. Compatible With:HKP-18898Now: $39.97Was: $49.95 -
HK MP5, HK94 Complete Weldment Set For Receiver Flat
HKP HK Parts
$59.95HKP MP5/HK94 Complete Weldment Set For Receiver Flat This is the finest, most correct weldment set for your HK MP5, 94 project available. Each Weldment Kit Contains:HKP-01453$59.95 -
HK VP9 Long Slide - Optics Ready - Complete
H&K Heckler & Koch
$489.95H&K HK VP9 Long Slide Optics Ready Complete Slide Kit New HK German VP9LOR slide kit to upgrade any existing VP9 model to the VP9L OR. This kit is a drop on replacement that come with everything...HKP-19836$489.95 -
HK416, MR556, G36, SL8 Piston Ring - Replacement Set of 3 - USA
HKP HK Parts
$8.95HK MR556, HK416 & G36, SL8 Gas Piston Ring Replacement Combo Set - 3 Rings This is a high wear common repair & replacement item. The gas rings are prone to periodic breakage & wear, tear and require...HKP-17933$8.95 -
On Sale
HK91, G3, PTR Armorer's Manual
HKP HK Parts
Now: $15.96Was: $19.95HK 91, G3, & PTR Armorer's Manual This manual is the best manual available for the HK .308 G3, 91, or PTR family of firearms. See the photos for the table of contents.HKP-02635Now: $15.96Was: $19.95