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 VP9 Optic Plate #5 - Burris Fastfire, Vortex Viper, Venom - Red Dot Pistol Mount
HKP HK Parts
$29.95 - $39.95HKP/H&K VP9 Series 9mm Fastfire, Vortex Optics Plate #5 The finest aluminum mounting solution for your HK VP9 Series Optic Ready model. New solid billet machined aluminum optics plate. Each plate is CNC machined from a solid billet of ordnance grade...HKP-19689-M$29.95 - $39.95 -
HK MP5 Magazine - 30 Round - .40 S&W / 10mm - US
HKP HK Parts
$49.95MP5 40/10 30 Round Magazine - US HKP, US made 30 round magazine for MP5's chambered in .40 S&W, 10mm, .357 Sig, and 9x25 Dillon. Each magazine counts as 3 US made components for satisfying 922r compliance. Compatible With: MP5 .40 Cal MP5...HKP-16456$49.95 -
P7 Series 4 in 1 Gas Cylinder Cleaning Tool
USA
$21.95P7 Series 4-In-1 Gas Cylinder Cleaning Tool Made from stainless steel and hand-fitted for perfect fitment on each P7 pistol. Each tool features a 4-in-1 (seven tool) and includes a precisely sized tip for grip screw removal, a gas cylinder...HKP-02080$21.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 10 Round - 9mm - California Compliant
KCI
$58.95California Complaint Magazine 10-30 - MP5, MP5K - GEN 2 - KCI USA This California compliant magazine has a 10 round block pre-installed which converts a factory 30 round magazine into a 10 round magazine. This is the best option to stay...HKP-20669$58.95 -
HK23, HK21, HK11, MG3 Ammunition Belt Starter Tab
H&K Heckler & Koch
$5.95H&K HK21/MG3 Ammo Belt Starter Tab - 7.62x51/.308 Starter tabs for HK21 and MG3 belt-fed rifles. Compatible With: HK 23/21/11HKP-21439$5.95 -
HK UMP Micro Comp - Threaded .578x28 Right Hand
HKP HK Parts
$29.95HKP .45 ACP Micro Comp - Threaded .578x28 RH The HK Parts micro comp & thread protector is designed to be lightweight, and functional as both a compensator and thread protector. The HK Parts micro comp easily attaches to the end of any factory spec ...HKP-20212$29.95 -
HK UMP .45 ACP 15 Round Magazine
HKP HK Parts
$49.95UMP, SMG .45 ACP 15 Round Magazine - USA Compact 15 round magazine will fit all HK UMP .45 caliber carbines, SMG's as well as the USC-UMP .45 caliber converted firearms. Each magazine features, steel feed lips, and robust polymer construction. Each mag...HKP-17585-M$49.95 -
HK VP9, P30 Extension Kit - Magazine - 17 Round
HKP HK Parts
$39.95HK Parts Magazine Extension +5 Capacity for HK 17 Round Magazine - HK VP9, P30, P30L New & improved Gen 2 model! HK Parts Magazine Extension +5 kit adds 5 additional rounds to the HK VP9/P30 17 round magazine with the simple swap of the floor plate...HKP-19296$39.95 -
Out Of Stock
HK MP5, MP5K Magazine Clamp - Dual - 9mm - Bundle
H&K Heckler & Koch
$299.95HK German MP5 & SP5 Or MP5K & SP5K 9mm Mag Clamp Bundle Allows the user to clamp 2 X MP5 9mm 30 round magazines together for ease of use & safety by keeping 2 magazines usable & at your disposal. A Heckler & Koch German made genuine...HKP-20492$299.95 -
HK33, HK53, HK93, HK91, G3 Rear Sight Base Weldment - 5.56 / .223 - 7.62 / .308
HKP HK Parts
$29.95HK G3, HK91, PTR & HK93, 33 & 53, FMP21 Rear Sight Base Weldment New US manufactured billeted from solid ordnance grade bar stock. Perfect for roller lock or other custom builds. Each unit is precisely machined and the best rear base available...HKP-17386$29.95 -
Out Of Stock
HK91, G3 Weldment Set Complete
HKP HK Parts
$89.95HK G3, HK91, PTR Weldment Set Complete New US manufactured billeted from solid ordnance grade bar stock. Perfect for roller lock or other custom builds. Each weldment set unit is precisely machined. Includes: Rear sight base Semi auto shelf 2 X rear...HKP-17509$89.95 -
HK MP5K, SP89, SP5K Side-Folding Brace - 9mm
SB Tactical
$249.95HK MP5K, SP89, SP5K & Clone - Side Folding Pistol Stabilizing Brace MP5K, SP5K, Zenith Z5P, Z-5K Folding Stabilizing Brace System. These are the last remaining units with an aluminum folding adapter as SB tactical has now switched over to a polymer...HKP-18016$249.95