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 MP5, SP5 Universal Clipping and Pinning Service
USA
$149.95HK Clip and Pin Service for Universal HK SP5 and HK MP5 At HK Parts we offer our own HK trigger housing clip and pin services. No one does a better job with quicker turn around then we do. We will...HKP-20472$149.95 -
$64.95 -
Bore Boss Pull-Through Bore Cleaner - 5.56 / .223
Real Avid
$10.95Real Avid Bore Boss Pull-Through Bore Cleaner - 5.56mm/.223 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready,...HKP-19402$10.95 -
HK416, MR556 E1 Charging Handle - Ambi - RAL8000
H&K Heckler & Koch
$169.99New RAL 8000 HK Designed HK416, MR556 Ambidextrous Charging Handle (E1). The E1 HK 416 FDE charging handle release latch has the ability of being swapped from the left side (E1) to the right sight...HKP-18502$169.99 -
Out Of Stock
HK UMP Magazine Release Axle
H&K Heckler & Koch
$19.95Heckler and Koch Magazine Release Axle for HK UMP Replacement magazine release axle for HK UMP platforms. This component is commonly replaced due to wear or breakage and may also be required when...HKP-02159$19.95 -
HK21E Ammunition Belt Box - 7.62x51 / .308
Michaels Machines
$674.95HK21E & MM21E Belt Box Brand new HK21E, MM21E US made feed box. The German units have long since been out of production. These are exact replicas of the German units. Made in the USA. Compatible...HKP-17752$674.95 -
HK PTR91 Triple Frame Sight Tower
H&K Heckler & Koch
$49.95PTR Triple Frame/Front Sight Tower for PTR Barrels This is a German HK triple frame that has been machined to accept the larger profile of the PTR barrels. Ready to use on your PTR91 barrels. Each...HKP-16325$49.95 -
AR-15 C.A.R.L. 3-Round Limiter Lever for FRTs
ST Inc
$145.00ST Inc. 3-Round C.A.R.L. Lever for AR-15 Rifles Equipped with AS Designs ARC-Fire and Atrius Trigger Systems The C.A.R.L. (Cam Activated Reset Limiter) is a drop-in FRT-piggy-back system that...HKP-22562$145.00 -
HK MP5, AP5 Firing Pin
MKE
$14.95MKE HK MP5/AP5 Firing Pin - 9mm MKE firing pin for HK MP5 platforms. Compatible With: HK MP5/SP5 Century Arms AP5/AP5PHKP-22243$14.95 -
B&T MP9, TP9, APC9, SPC9, GHM9, KH9 Magazine - 20 Round - Improved Rubber Bumper
B&T Brugger & Thomet
$65.00B&T 20 Round Magazine 9mm with Improved Rubber Bumper The B&T factory 20 round magazine is designed for reliable performance in B&T firearms. Equipped with an upgraded rubber bumper for added...HKP-21714$65.00 -
HK MP5K 2-Stage Trigger Group - 9mm - Complete
Timney Triggers
$498.95Timney Trigger for MP5K, SP5K The SEF Timney trigger group comes completely assembled, ready to drop into your receiver. Features a 3rd generation German ejector lever, new SEF selector lever, and a...HKP-20515-M$498.95 -
HK MP5K, SP5K, SP89 Side Folding Brace Adapter
HKP HK Parts
$119.95HKP MP5K/SP5K/SP89 Side Folding Brace Adapter The HK Parts folding brace adapter is the best option to attach the SB tactical Folding brace or any brace that utilizes the same mounting system...HKP-20798-M$119.95