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 USP International Holster - Comp Carry
Comp-Tac
$89.95Comp-Tac HK USP International Comp Carry Holster The International Holster is an outside-the-waistband holster with a modular mounting design, giving the user 16 holster options in 1. Designed to be worn in the 3 o'clock position, this holster is perfect...HKP-21121-M$89.95 -
HK USP Firing Pin - New Style
H&K Heckler & Koch
$79.95HK USP New Style Firing Pin A must-have spare and replacement part for your HK pistol, as the firing pin is one of the most important spare parts to have on hand. Brand new HK German manufactured. Compatible with: HK USP 9mm HK USP 40 Cal HK USP .45 All...HKP-01565$79.95 -
HK416, MR556, MR762 Clamping Sleeve Safety Lever
H&K Heckler & Koch
$7.95H&K HK MR556/MR762/416 Clamping Sleeve Safety Lever There are one of the same pin on both sides. Compatible with: HK MR556 HK 416 HK MR762HKP-15252$7.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style
H&K Heckler & Koch
$29.95Heckler and Koch Handguard Locking Screw for your HK416, MR556, HK417, MR762 Replacement handguard locking screw that secures the handguard to the upper receiver. This version features the "X" allowing the bolt head or HK sling hood tool to be used for...HKP-02680$29.95 -
HK91, G3 Buffer - Folding Stock - Replacement
Choate
$3.95Choate HK 91 & G3 (7.62x51/.308) Folding Stock Replacement Buffer Choate .308 folding stock replacement buffer for all HK91/G3 PTR stocks. A great item to have on hand as these do wear and are prone to breaking. Compatible With: HK 91/G3HKP-00211$3.95 -
HK Universal Angled Fore Grip - M-LOK
Magpul
$28.95Magpul - M-LOK AFG (Angled Fore Grip) The Magpul M-LOK AFG (Angled Fore Grip) is the result of research and refinements done to the original AFG and AFG-2. By integrating the direct-attach M-LOK mounting system with minimalist construction we were able...HKP-17267$28.95 -
On Sale
HK VP40 Compensator- Rail Mount - Gen 2
HKP HK Parts
Now: $99.95Was: $169.95HKP HK VP40 Gen 2 Rail Mount Compensator Specifications: Length: 4 1/4 inches Height: 2 1/2 inches Weight: 5 oz Torque: Bottom Screws - 26 inch-lbs Side Screws - 18 inch-lbs Should NOT be used with a Threaded Barrel It is recommended by...HKP-19170Now: $99.95Was: $169.95 -
HK MP5 Folding Stock - .22LR - UMP Style
HKP HK Parts / Heckler & Koch
$249.95HKP HK Parts and Heckler and Koch UMP Style Folding Stock with HK Parts Stock Adapter for MP5 .22LR New complete MP5 .22lr folding stock with UMP style stock section. Each stock uses a UMP style stock for a longer length of pull and a includes a new CNC...HKP-20167$249.95 -
Out Of Stock
HK416, MR556 Bench Mat
HKP HK Parts
$24.95HK MR556, HK 416 Bench Mat Our HK MR556, HK416 bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch MR556 & HK416 models. Have fun and learn while you work on your favorite H&K firearm. The soft top...HKP-17169$24.95 -
Out Of Stock
HK45C Finger Rest Magazine Extension - +2
HKP HK Parts
$29.95HK45C 8 Round Magazine +2 Magazine Extension/Finger Rest All of the HK .45 cal mags will soon have a variety of mag extensions! More to come. HK45C 8 round +2 mag extensions. Replaces the floorplate for a +2 round addition for a total of 10 rounds in the...HKP-17999$29.95 -
HK VP9, P30, HK45 Holster for Lights and Lasers - L Line
Comp-Tac
$84.95 - $85.95Comp-Tac L Line Holster for Lights and Lasers for HK VP9, HK P30 and HK45 The L Line Holster OWB- A Multi-Fit Solution for Firearms with Light or Laser Attachments Features: Modular design allows one holster to be used with multiple firearms and lights,...HKP-18825-M$84.95 - $85.95 -
HK UMP Armorer Manual - 9mm / .40 S&W / .45 ACP
HKP HK Parts
$19.95HK UMP Armorer Manual This is the most in-depth manual available for the UMP series and covers the UMP 45, 40, & 9mm calibers. It has 64 Pages with diagrams and in-depth coverage of the history and full mechanical diagrams of the UMP firearm.HKP-00612$19.95