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 MP5K, SP5K Telescopic Brace
B&T Brugger & Thomet
$650.00B&T Telescopic Brace for HK MP5K, SP5K B&T telescopic brace for HK SP5K/MP5K and clones Specifications: Length adjustable in 5 positions Includes replaceable elastomer rubber buffer Just add your favorite tailhook style device and you are good...HKP-19861$650.00 -
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 -
Out Of Stock
HK P2000SK Magazine Floorplate - 9mm - 10 Round - Extended
H&K Heckler & Koch
$22.95HK German P2000 SK Magazine Floor Plate - Extended P2000SK extended magazine floor plate fits all P2000 SK magazines. The perfect floorplate if you want a place for your pinky when grasping the firearm. Compatible With: P2000 SK P30SK (with slight...HKP-17399$22.95 -
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 MP5, SP5 Stock - Telescopic
B&T Brugger & Thomet
$650.00B&T's 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 telescopic stock, the MP5...HKP-19352$650.00 -
HKP HK 45/45C Bench Mat
HKP HK Parts
$13.95HKP HK 45/45C Bench Mat This isn't your ordinary gun cleaning mat! Show your pride for your HK45, HK45C firearm while using this high quality neoprene rubber backed and cloth top gun cleaning mat to protect your gun bench, desk, kitchen table, or...HKP-17171$13.95 -
HK416, HK417, MR556, MR762 Rear Diopter Sight
H&K Heckler & Koch
$226.95H&K HK MR556/MR762/416/417 Rear Diopter Sight Factory correct rear diopter sight for 416/417 and MR platforms. This sight can be paired with a fixed front sight or folding front sight. Compatible With: HK MR556 HK416 HK MR762 HK417HKP-00027$226.95 -
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 -
HK90 Series Stock Locking Pin - Large
MKE
$6.95MKE Large Push Pin for your HK90 Series Stock Each large stock push pin is used to retain the stock to the receiver on the 90-series firearms. These are great replacement or spare part to keep on hand as they fit all of the 90-series firearms below. The...HKP-21593$6.95 -
HK MP5, HK94 Retractable Buttstock - A3 F
H&K Heckler & Koch
$577.95HK German MP5 & 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, 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 -
HK MP5, MP5K Flash Hider - 3 Lug - 9mm
HKP HK Parts
$99.95MP5, MP5K Flash Hider - 3-Lug - 9mm Installs & un-installs in seconds. New style HK flash hider with the latest style locking latch that sits flush when locked. Made in the USA from ordnance grade steel. Compatible With: HK MP5 HK MP5K HK...HKP-20170$99.95