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 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, HK33, HK53, HK93 Elbow Spring With Roller - Full Auto Trigger Pack - Used
H&K Heckler & Koch
$4.95H&K Full Auto Trigger Pack Elbow Spring With Roller - USED Used- Good shape. This item is a factory HK German replacement part.HKP-16241$4.95 -
Bore Boss Pull-Through Bore Cleaner - 9mm MP5, SP5K
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 -
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 -
HK MP5, SP5K - Folding Stock Section Only
B&T Brugger & Thomet
$139.95B&T MP5K & MP5 - Folding Stock Section Only Ideal for those moving from the SB Tactical SBT5 or SBT5K side folding brace to NFA/SBR status as these braces already include the B&T side-folding stock adapter backplate. Specifications: Requires...HKP-18246$139.95 -
Out Of Stock
HK MP5, MP5K Optic Mount - 138mm - Low Profile - Extended Picatinny
B&T Brugger & Thomet
$159.95B&T MP5, MP5K Low Profile Picatinny Mount Specifications: Color: Black Height max: 23.5 mm Length max: 138 mm Length of top rail: 138 mm Material: Aluminum NATO Accessory Rails: 1 weaver type style rail Part number: BT-21241 Treatment:...HKP-16876$159.95 -
HK VP9 Optic Plate #4 - Leupold DeltaPoint Pro, Eotech EFLX - Red Dot Pistol Mount
H&K Heckler & Koch
$48.95Optics Plate #4 Leupold DeltaPoint Pro & Eotech EFLX - HK VP9, VP9L New HK German OEM manufacture steel optics plate Compatible With: HK VP9 OR, VP9 Tactical OR HK VP9L OR HK VP9 Match OR HK VP9SK OR HK VP9A1 K HK VP9A1 F **Plate only works with...HKP-19255$48.95 -
HK MP5, HK94 Retractable Buttstock - A3 F
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, HK91, G3, HK93, HK94, Clones Heckfire 2-Stage Trigger
$399.95Heckfire trigger for MP-5, HK 91/93/94, G3, Clones 2-stage trigger with around 5lb total pull. Drop-in to all lowers. The updated selector levers work for all lowers (you no longer need to tell us if it is an SEF or an AMBI lower) and they cover...HKP-20173$399.95 -
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 -
HK21, HK11 Barrel - 17.7" -7.62x51 / .308
RCM
$684.95RCM HK21 Barrel RCM HK21 barrels are crafted from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. These barrels are the most cost-effective option to finish your HK21/FMP or HK11 build as the original barrels are rare and command a...HKP-21521$684.95 -
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