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 Single Point Quick Detach Sling - OD Green
NcSTAR
$29.95HK Single Point Sling in Green - Quick Detach Specifications: Composition: Heavy duty 1.5" wide adjustable nylon webbing and elastic bungee construction. Style: Bungee-type design for complete comfort and stability Sling loop is adjustable for length...HKP-19708$29.95 -
HK VP9, HK VP40 Backstrap - Small - Black
H&K Heckler & Koch
$29.95H&K VP9, HK VP40 Backstrap - Small - Black New HK German manufacture. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 KHKP-16814$29.95 -
HK UMP, USC Recoil Buffer
H&K Heckler & Koch
$20.95HK German USC & UMP Recoil Buffer Replaceable spare lower housing or buffer for buffer housings. This is a high wear and replacement item and a must-have for spare parts. Compatible With: HK USC .45 HK UMP modelsHKP-00594$20.95 -
HK UMP, USC Lower Axle
H&K Heckler & Koch
$9.95HK UMP & USC Lower Axle - German 3 X lower axle pins are used for each trigger group or lower all pins are the same size, except the mag release axle on the USC model.HKP-01893$9.95 -
HK MP5 Magazine Locking Plate - 9mm - Red
HKP HK Parts
$7.95HKP HK MP5, MP5K 9mm Magazine Locking Plate - HK Red Teflon infused glass filled polymer red colored locking plate that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the locking plate to a red unit. A great...HKP-18303$7.95 -
Streamlight TLR-9 Weapon Light - 1,000 Lumens
Streamlight
MSRP: $269.66$144.95Streamlight TLR-9 Weapon Light - 1,000 Lumens Maximize your weapons platform with interchangeable rear paddle switches that allow you to customize your TLR-9 to your shooting style. Features: 1,000 lumens; 200m beam; runs 1.5 hours Custom optic...HKP-21620MSRP: $269.66$144.95 -
Out Of Stock
HK416 A5 Trigger Guard - RAL8000
H&K Heckler & Koch
$54.95H&K HK 416 A5 Trigger Guard: Check out the factory H&K A5 trigger guard, now available in the highly desirable Ral8000 anodized finish. This is the latest and greatest addition to complete your A5 416 build. Compatible With: HK 416 A3/A5 HK...HKP-21517$54.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Bundle of 10
Zenith
$349.9530 Round Magazine - Zenith - MP5, MP5K - Bundle of 10 Features: Durable electro-plated black finish for exceptional corrosion resistance All steel construction Round count indicator holes on the rear of the magazine Stainless steel...HKP-20673$349.95 -
HK SP5 Folding Stock w/ HK Parts Adapter
B&T Brugger & Thomet
$299.95B&T Folding Stock with HK Parts Adapter - SP5 B&T stock with a SP5 HK Parts Adapter. The HK Parts adapter is made from a solid billet of CNC machined aircraft grade aluminum and offers a QD attachment point. Finished in black cerakote. This will...HKP-20663$299.95 -
HK MP5, HK94 Slimline Handguard - OD Green
H&K Heckler & Koch
$49.95H&K HK MP5 & HK94 Slimline Forearm - OD Green Used German military surplus O.D green slimline forearm with heat shield cut down to fit the MP5 & HK94. These are rare items only offered here at HK Parts. Each item is in good to excellent shape...HKP-20197-M$49.95 -
HK VP9, P30 Magazine Extension Kit - +4
HKP HK Parts
$34.95HKP +4 HK VP9/P30 Magazine Extension Kit HK Parts magazine extension +4 kit adds 4 additional rounds to the HK VP9/P30 magazine with the simple swap of the floor plate and the included high reliability mag spring. Each +4 kit includes the +4 extension...HKP-17589$34.95 -
HK P30L Lightcomp™
HKP HK Parts
$387.95HKP P30L Lightcomp™ (Patent Pending) Traditionally, adding a compensator and a weapon light to your pistol would require purchasing the light and the comp. In a perfect world, that combo would optimally locate the weapon light switches for...HKP-21427$387.95