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 SP5, SP5K Thread Protector - 9mm - 1/2x28
HKP HK Parts
$19.95HKP HK SP5, SP5K 9mm Thread Protector - Threaded 1/2x28 Our thread protector is compatible with all factory-spec SP5 barrels and is a perfect replacement part. Specifications: Made in the USA Threaded 1/2x28 Compatible With: HK SP5, SP5K 9mm SP5, SP5K...HKP-21375$19.95 -
Out Of Stock
HK MP5 Chevron Front Sight - Gen 2 - Luminescent Green
Blitzkrieg Components
$56.99Blitzkrieg HK MP5 Chevron Front Sight Gen 2 - Luminescent Green The Blitzkrieg Gen 2 HK-style front sight provides a fast, bold sight picture with a sharp aiming point, designed for enhanced visibility and precision. The luminescent green chevron stripe...HKP-20452$56.99 -
HK USP Straight Trigger
Grayguns
$94.95Grayguns Straight Trigger for HK USP Straight trigger upgrade for HK USP full-size pistols. Designed to reduce over-travel and provide a consistent, 90-degree break. The straight face allows a lower finger position, which can make the trigger feel...HKP-21344$94.95 -
HK VP9, VP9SK, VP40 Clamping Sleeve For Drop Safety Axle
H&K Heckler & Koch
$6.95Clamping Sleeve For Drop Safety Axle VP9, VP9SK & VP40 This is the roll pin that goes in the side of the slide and retains the drop safety.HKP-16838$6.95 -
Out Of Stock
HK USP Tactical Barrel - .45 ACP - 5.09" - Threaded .578x28 RH
RCM
$250.00RCM HK USP .45 ACP Tactical Barrel - Threaded .578x28 RH HK USP .45 & USP .45 Tactical threaded barrel compatible with various flash hiders and sound suppressors. Unlike the factory USP .45 Tactical barrel, which uses a less common metric 16x1 left...HKP-17447$250.00 -
HK VP9, HK45, P30, P2000 Rubber Extractor Buffer
H&K Heckler & Koch
$5.95HK P Series and HK45 Rubber Extractor Buffer A must-have wear and replacement part for the following HK pistols. Compatible With: HK P2000 HK P2000SK HK P30 HK P30SK HK45 HK45 Compact HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SKHKP-01632$5.95 -
Sling - 2 Point - Leather and Cotton
HKP HK Parts
$59.952 Point Leather & Cotton Sling Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German artisan using quality US leather and hardware. Each sling is approximately 48" long...HKP-21320-M$59.95 -
HK VP9, VP9SK, VP40 Windowed Slide Plate
HKP HK Parts
$29.95HKP HK VP9/VP9SK, HK VP40 Windowed Slide Plate A direct replacement for the cheap plastic slide plate that comes stock with your HK VP9, VP40. A great way to dress up and enhance your HK VP9, VP40 pistol. Made from CNC'ed aircraft grade aluminum, hard...HKP-17676-M$29.95 -
HK MP5, HK94 A3 F Retractable Buttstock
H&K Heckler & Koch
$577.95HK German MP5 and HK94 A3 "F" Style Retractable Rear Stock This German HK A3 retractable is the latest and greatest HK retractable German stock available. The F stock is designed to take the abuse of heavy +P and +P+ rounds, as well as all standard...HKP-00168$577.95 -
HK MP5, SP5 Telescopic Stock
B&T Brugger & Thomet
$650.00B&T's Brugger and Thomet Telescopic Stock for HK MP5 B&T offers a selection of shoulder stocks for the HK MP5, SP5, MP5SD, MKE AP5, ZF-5 in order to adapt the weapon to the needs of its operator. Due to the in 5 positions length adjustable...HKP-19352$650.00 -
HK VP9, VP40 Spring Bushing - Washer
H&K Heckler & Koch
$9.95H&K HK VP9, HK VP40 Half Shell Spring Washer 2 units needed for complete set. Brand new factory German HK. This item is the item that cradles the firing pin and is covered by the firing pin sleeve and spring assembly. Compatible With: HK VP9 HK...HKP-16832$9.95 -
HK MP5, SP5K Bore Cleaner - Bore Boss Pull-Through - 9mm
Real Avid
$12.95Real Avid Bore Boss Pull-Through Bore Cleaner - 9mm From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable with...HKP-19398$12.95