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
-
HK MR762, G28 Free Floating Rail System - RAL8000
H&K Heckler & Koch
$999.95HK MR762, 417 Extended Free Floating Rail System - RAL 8000 - Tan New Heckler & Koch MR762, HK 417, & G28 extended forearm with flip up front sight & suppressor window cutout. Optimized design to mitigate the heat emissions for long range...HKP-17707$999.95 -
HK45, HK45 Compact, P2000, P2000SK Slim Slide Release Lever with Axle
H&K Heckler & Koch
$30.95HK Slim Slide Release Lever w/ Axle This is the upgraded version that replaced the original early versions. This model has enhanced upgrades to update and improve your HK pistol's function and design features. Compatible With: HK45 HK45...HKP-01956$30.95 -
On Sale
HK45 Thread Protector - .578x28 RH - Knurled
HKP HK Parts
Now: $11.95Was: $14.95HKP HK Parts HK45 Thread Protector - Threaded .578x28 RH - .45 ACP The new US-made .45 ACP tactical thread protector, the cap fits all HK45 full size & compact barrels threaded .578x28 RH thread. A must-have item to protect your threaded barrels,...HKP-17623Now: $11.95Was: $14.95 -
On Sale
Battle Sight - Rear
Troy Industries
Now: $116.95Was: $129.95Troy Industries Rear Battle Sight Durability and dead-on accuracy have made the Troy Industries Folding Battle Sight one of the best choices for Special Ops and tactical users worldwide. Easy to install and deploy, with no levers or springs to fumble...HKP-00032Now: $116.95Was: $129.95 -
Out Of Stock
HK416 Upper Receiver Kit - 10.4" - 5.56
HKP HK Parts
$2,485.95HKP 416 10.4" 5.56 Complete Upper Kit Complete Each kit includes the complete upper assembly, bolt group, tungsten buffer, & high-reliability SS recoil spring. This upper kit is a complete gas piston HK 416 style upper assembly that will drop on your...HKP-17662$2,485.95 -
HK416, MR556 Extractor
H&K Heckler & Koch
$64.95Heckler and Koch HK416 and MR556 Bolt Head Extractor New HK - German Compatible With: HK MR556 HK 416 CR556 HK M27HKP-00036$64.95 -
HK416, MR556 Charging Handle Roll Pin
H&K Heckler & Koch
$7.95HK Heckler and Koch Clamping Sleeve or Roll Pin for Pawl on Charging Handles This is the longer one that is used on the outside of the charging handle. There are one of these pins used per charging handle.HKP-17063$7.95 -
Out Of Stock
HK416, MR556 Ejector Spring
H&K Heckler & Koch
$39.99Heckler and Koch HK416 and HK MR556 Ejector Spring Compatible With: HK 416, MR556HKP-02538$39.99 -
HK G36, G36K, G36C Sling
H&K Heckler & Koch
$64.95New HK German carrying sling without quick release. 38 mm wide Compatible With: G36 G36K G36CHKP-18459$64.95 -
HK SL8 Buttstock Cheek Riser Piece
H&K Heckler & Koch
$34.95Heckler and Koch HK German SL8 Stock Cheek Riser Piece Compatible with all HK SL8 models. Cheek piece for SL8-1 and SL8-6 riflesHKP-01701$34.95 -
On Sale
HK G36, SL8 Bolt Group Fork
USA
Now: $7.95Was: $10.95G36 & Sl8 Bolt Group Fork For Cocking Handle - USHKP-18774Now: $7.95Was: $10.95 -
HK UMP Firing Pin Retainer Pin
H&K Heckler & Koch
$7.95HK UMP Firing Pin - Retainter Pin This is the pin that trips the trip lever on the UMP lower. Compatible With: HK UMPHKP-01894$7.95