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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On Sale
HK91, G3 Cocking Handle - Extended
HKP HK Parts
Now: $51.96Was: $64.95HK 91, G3, PTR & CETME, C 308 Cocking Handle - Extended Add the look, feel, and enhanced pulling advantage of the extended cocking handle to your HK91, G3, PTR & C308 firearm. This upgrade will provide more than 2X the surface area and charging...Now: $51.96Was: $64.95 -
On Sale
HK VP9, HK VP9L Optic Plate #2 - Trijicon RMR - Red Dot Pistol Mount
H&K Heckler & Koch
Now: $44.06Was: $48.95Optics Plate #2 RMR - HK VP9, VP9L New HK German optics plate. The factory OEM steel plate. Compatible With: Trijicon RMR and Holosun 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...Now: $44.06Was: $48.95 -
On Sale
HK .45 ACP O-Ring - Barrel
H&K Heckler & Koch
Now: $4.46Was: $4.95Heckler and Koch .45 ACP Caliber Barrel O-Ring in Black A great spare and a much-needed part for your HK barrel. This factory part is a high-wear item, as the O-ring provides the seal between the slide and the barrel, which provides a secure lockup with...Now: $4.46Was: $4.95 -
On Sale
HK Recoil Rod Guide Ring - Recoil Rod Assemblies - Enhanced
HKP HK Parts
Now: $1.91Was: $2.39HKP Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced New enhanced material for greater longevity and durability. Our US made recoil rod guides are the made from the strongest most durable material available much better than the basic nylon as...Now: $1.91Was: $2.39 -
On Sale
HK P9/P9S Recoil Buffer
HKP HK Parts
Now: $15.96Was: $19.95HK P9S Recoil Buffer Fits All 9mm & 45 P9 & P9S Models This is a must-have replacement item as the buffer will degrade and fall apart with use and age. Replacing the P9 buffer is the most common wear and replacement part on the P9 series of...Now: $15.96Was: $19.95 -
On Sale
Grayguns HK P30, P2000 Short Reset System
Grayguns
Now: $81.00Was: $90.00Grayguns HK P30, P2000 Short Reset System Replicate our custom in-house short reset conversion with a drop-in kit for your HK P2000 or P30 without a thumb safety. Cut from bar stock steel, these kits provide an exacting fit for easy install...Now: $81.00Was: $90.00 -
On Sale
Tailhook - Mod 1C - Gear Head Works - Stocks and Braces
Gear Head Works
Now: $148.45Was: $164.95Gear Head Works Tailhook Mod 1C The Patented Tailhook MOD 1C is 30% lighter and 30% more compact than or standard Mod 1. With a profile similar to the SCW Tailhook it truly is the most compact pistol brace on the market today. At less than an inch thick,...Now: $148.45Was: $164.95 -
On Sale
HK P30 Series Light Trigger Return Spring
H&K Heckler & Koch
Now: $7.16Was: $7.95Light Trigger Return Spring This spring is a popular choice for those who opt for custom trigger pulls and spring conversions. It's also known as the "light" trigger return spring for the P30 series of pistols. Converts a V2 heavy LEM to a light V1...Now: $7.16Was: $7.95 -
On Sale
Heckler & Koch No Compromise Decal
H&K Heckler & Koch
Now: $1.75Was: $1.95Heckler and Koch No Compromise Decal Show your support for the HK 416 weapon System. HK shows no compromise as the worlds finest firearms manufacture the world over! Specifications: Size: 4 in. Circle WeatherproofNow: $1.75Was: $1.95 -
On Sale
HK Vertical Foregrip - Long - Picatinny
HKP HK Parts
Now: $19.96Was: $24.95HKP Vertical Grip - Picatinny Mount - Long This rock-solid grip is a must-have for anyone who uses a vertical grip. This is the only vertical grip that offers a built-in aluminum locking block for ease of attachment security. Features: Attaches in...Now: $19.96Was: $24.95 -
On Sale
HK53, HK93, HK91, G3 Elbow Spring - Cocking Lever Support
H&K Heckler & Koch
Now: $5.17Was: $5.74New Style Cocking Handle Lever Spring - German This is the latest HK German spring design with the factory HK anti-corrosion plating applied. The factory HK springs last longer and is more tolerant to corrosion. A perfect upgrade for your older...Now: $5.17Was: $5.74 -
On Sale
HK VP9SK, P30SK Magazine - 15 Round
H&K Heckler & Koch
Now: $44.06Was: $49.95H&K 17 Round HK VP9SK/P30SK 9mm Magazine New factory HK 17 round magazine for the VP9SK & P30SK. HK's magazine is made to their specifications and tolerances using high quality materials that provide perfect fit, durability and...Now: $44.06Was: $49.95