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 Fixed Stock
AC-Unity
$69.95AC-Unity HK MP5 Fixed Buttstock - Gen 2 with Removable Butt Pads The AC-Unity HK MP5 fixed buttstock delivers superior performance and comfort. Featuring soft, shock-absorbing rubber recoil pads, it effectively replaces the outdated fixed but-pad,...$69.95 -
HK German Sling - 3 Point - Factory Original - Green
Other
$99.953 Point Factory Sling HK German - Green New HK German manufactured. This sling can be used as a 2-point or 3-point sling on your HK firearm. This sling is the factory HK-issued sling that came on the 90 series of firearms. Compatible...$99.95 -
HK VP, P30 Magazine Spring
H&K Heckler & Koch
$6.95HK VP9, VP40 & P30, P30S & P30L - Magazine Spring A must-have replacement item as magazine springs should be replaced regularly as this is a consumable part and is prone to wear and tear. Compatible With All Standard Capacity 9mm & .40...$6.95 -
HKP Bundesadler Patch
HKP HK Parts
$6.99HKP Bundesadler Patch Get your hands on some of our premium new patches! 100% high grade rubber PVC patch with velcro backing for its outer carrier. Features: Velcro Back Official HKP Merchandise$6.99 -
HK MP5 Magazine - 30 Round, 9mm
Zenith
$48.95Zenith 30 Round HK MP5 Magazine Features: Cerakote finish - Many colors to choose from All steel construction Round count indicator holes on the rear of the magazine Stainless steel follower Reinforced feed lips High-tensile compression...$48.95 -
HK Pistol Handgun Grip
Hogue
$11.95Hogue Grips Universal HK Handgun Grip The Hogue Grip hugs the contours of your gun. Molded from their modern" soft" but durable rubber" Handall grip sleeves are easily installed and provide years of dependable service. Soft textured rubber...$11.95 -
Picatinny Optic Rail - Claw Adapter
UTG PRO
$14.95HK Claw Mount To Picatinny Style Rail This part allows all STANAG style scopes to accept the universal Picatinny style rail. Each rail adapter comes with rail and mounting hardware. This part adds 6 1/8 inches of rail space to the top of your claw mount...$14.95 -
Holosun HK VP9/VP9SK Direct Fit SCS Reflex Sight
Holosun
$359.95Holosun HK VP9 SCS-MOS Reflex Sight This solar charging sight is designed to attach directly to the slide without an adapter plate and uses an innovative solar charging system with multi-directional light sensors to automatically adjust brightness in...$359.95 -
HK MP5K, SP5K Stock or Brace Adapter - Picatinny Rail
HKP HK Parts
$129.95HKP HK MP5K/SP5K/SP89 Picatinny Rail Brace/Stock Adapter Our rail stock adapter allows you to attach any 1913 Style Stock, Brace to your MP5K.The 1913 style stocks & braces lock in place and provide a better Cheek Weld than many traditional stock...$129.95 -
Out Of Stock
HK416, HK417, MR556, MR762 Fixed Front Sight Assembly
H&K Heckler & Koch
$119.95H&K HK MR556/MR762/416/417 Fixed Front Sight Assembly German HK front fixed sight for use with a rear diopter style sight. It can also be used on some other Ar-15/M-16 applications. Complete with all mounting hardware for a Picatinny rail. Compatible...$119.95 -
HK MP5, SP89, HK91, G3, HK93, HK94, SP5K Grip Screw and Washer
H&K Heckler & Koch
$1.49H&K Grip Screw & Washer This is a surplus factory HK German part that is now out of production. Great to have as a spare and the cheapest price on the planet. Compatible With: G3 HK91 HK93 HK94 SP89 Other HK metal framed lowers with plastic...$1.49 -
HK MP5, MP5K Front Sight Tower Assembly
HKP HK Parts
$54.95HKP MP5, MP5K Front Sight Tower Assembly New US made from a solid billet of ordnance grade steel. Each front sight tower, triple frame set comes complete with a new HK diopter style replaceable front sight post & roll pin. This is the complete set...$54.95