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 Pistol Stabilizing Brace- SBA3 - 5 Position Adjustable
SB Tactical
$269.95SBA3 - 5 Position Adjustable Stabilizing Brace - MP5 The perfect addition to your firearm with the ability to adjust length with its 5-position adjustable buffer tube. Dramatically enhances versatility, and features a minimalist design with an integral,...HKP-20276$269.95 -
On Sale
HK33, HK53, HK93 Pistol Stabilizing Brace - SBA4 - Adapter Included
SB Tactical
Now: $265.45Was: $294.95SB Tactical Pistol HK93/33/53 SBA4 Stabilizing Brace & Adapter Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket...HKP-19929Now: $265.45Was: $294.95 -
HK MP5, MP5K Rear Sight Base - MIM and Machined
H&K Heckler & Koch
$14.95Heckler and Koch Rear Sight Base - Weldment for HK MP5 and HK MP5K New HK MP5, MP5K 17-4 Stainless H900 rear sight base. The most correct MP5, MP5K rear sight base available. The only factory correct sight base with the factory HK German side axis...HKP-19705$14.95 -
On Sale
HK MP5 Foregrip Weapon Light - 628 Momentary - USED
Surefire
Now: $399.95Was: $499.95Surefire 628 HK MP5 - Momentary Handguard - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY NO BATTERIES INCLUDED. USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Surefire 628 momentary forearm used...HKP-19403-BNow: $399.95Was: $499.95 -
HK VP9, VP40 Grip Panel Right Side - Small
H&K Heckler & Koch
$18.95H&K VP9, VP40 Grip Panel Right Side - Small - Black New HK German manufactured. Left side, medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VP Pistol. Compatible With: HK VP9 HK VP9A1 F, VP9A1 K HK VP40HKP-16811$18.95 -
HK VP9, VP40 Disassembly Lever
H&K Heckler & Koch
$24.95Disassembly Lever VP9 & VP40 New HK German VP9, VP40 take down lever. This is the lever that is designed to take the remove the slide from the frame. All steel manufacture. Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40HKP-16818$24.95 -
HK MP5 Locking Roller +4 - .40 S&W
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, +4 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...HKP-17562$11.95 -
HK45, HK45, USPC Mag Pouch - Single
Comp-Tac
$34.95Comp-Tac HK USPC/45/45C .45 APC Single Mag Pouch The Comp-Tac single magazine pouch is an outside the waistband holder to carry a spare magazine for competition, concealed carry or general use. The Comp-Tac single magazine pouch provides a rigid material...HKP-17497$34.95 -
HK USP Decocking Lever - Left Side V1, V5, V9
H&K Heckler & Koch
$59.99H&K HK USP Left Side V1/5/9 Decocking Lever A Heckler and Koch genuine part. This item allows a right-handed shooter to have the safety and or decocking functions on the LEFT side of the firearm. This is to be used in conjunction with the correct...HKP-01169$59.99 -
HK416, MR556 Enhanced Field Cleaning Kit
H&K Heckler & Koch
$169.95HK HK416/ MR556 (all variants & models) field cleaning kit- Enhanced Cleaning kit made both the HK 416, MR556 series of rifles and MG's. Includes: Saf-T-Clad Cleaning Rod HK Carbon Scraping Tool Accessory Adapter Section #8-32 Patch Holder Chamber...HKP-17061$169.95 -
HK91, G3 Parts Kit - RCM Barrel
H&K Heckler & Koch
$518.95HK German G3 .308/7.62 X 51mm Surplus Parts Kit Finally, after more than 4 years of searching the globe, we have HK German Surplus G3 parts kits available to offer. Each parts kit comes complete with all parts from a functional HK G3 full auto rifle that...HKP-16577$518.95 -
HK MP5 Axle Rod and Pin, Bolt Hold Open - .40 S&W, 10mm
HKP HK Parts
$49.95HK MP5 40, MP5 10 Bolt Hold Open Axle Rod & Pin Combo Each bolt hold open rod axle includes the 2 pre-drilled holes for the threaded activation screw and the clamping sleeve. This offering includes both the axle rod and the threaded screw for the...HKP-17405$49.95