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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HK45C, USPC Magazine - 8 Round
H&K Heckler & Koch
$59.95New HK German HK45C & USPC 45 8-Round Magazine HK German 8-round magazine with finger rest. New factory-fresh, hard to find. Compatible With: HK USP 45 Compact HK45C & HK45C Tactical modelsHKP-00303-M$59.95 -
HK MP5, MP5K Dual Magazine Clamp - 9mm
H&K Heckler & Koch
$129.95HK German MP5, MP5K, SP5, SP5K 9mm Dual Magazine Clamp Genuine HK dual magazine clamp for twice the rounds exactly where you need them. This is also a great way to swap between two different types of ammo, like FMJ and JHPs or super and subsonic...HKP-00083$129.95 -
HK USP, USPC Laser - Red
HKP HK Parts
$29.95HKP HK USP/USPC Laser - Red Finally, a laser designed to fit the HK USP & USP Compact Family of firearms without a bulky and expensive adapter. This affordable offering is now available to all HK USP, USP owners. This patent-pending offering is a...HKP-16504$29.95 -
On Sale
HK VP9 Rail Mount Compensator - Gen 2 V1
Now: $99.95Was: $179.95HKP HK VP9 Rail Mount Compensator - Gen 2 V1 *DO NOT USE COMPENSATOR WITH A THREAD PROTECTOR INSTALLED ON THE BARREL. Doing so will result in damage to your firearm and compensator.* Specifications: Length - 4 1/4 inches Height - 2 1/2...HKP-19000Now: $99.95Was: $179.95 -
HK91, G3 Wide Handguard
AC-Unity
$74.95AC-Unity HK G3 Wide Handguard G3 length, black, wide handguard with bipod groove. Perfect fit for your HKG3, HK91, or PTR91 that takes standard G3 length handguards. Includes an inner heat shield to protect your hand. The outer design provides a...HKP-21639$74.95 -
HKP 9mm Micro Comp - Threaded 1/2x28 RH
HKP HK Parts
$29.95HKP 9mm Micro Comp - Threaded 1/2x28 RH The HK Parts Micro Comp & Thread Protector is designed to be lightweight and functional as both a compensator and thread protector. The HK Parts Micro Comp easily attaches to the end of any factory spec...HKP-19722$29.95 -
On Sale
IMI 32 Round Uzi 9mm Magazine - German Military
IMI
Now: $25.95Was: $39.95IMI 32 Round Uzi 9mm Magazine - German Military These magazines were military only, not commercial, which makes them desirable magazines. Conditions vary from excellent to like new shape. Any cosmetic imperfections are mostly from handling and...HKP-14472Now: $25.95Was: $39.95 -
HK MP5K Vertical Grip - VFG M-LOK
HKP HK Parts
$49.95HKP HK MP5K Vertical Grip VFG M-LOK Our VFG for the MP5K platform is now M-LOK compatible. The perfect combination to install lights or lasers. M-LOK slots are integrated on both sides to make it a true ambidextrous vertical grip. Made in the USA...HKP-20737-M$49.95 -
HK MP5 A3 Telescopic Stock Buffer - USA
$7.74MP5 A3 Retractable Stock "H" Buffer For All HK A3 Retractable Stocks The A3 stock buffer is a high-wear and replacement item that needs replacement when torn, cracked, brittle, discolored, and worn. These units are from the same material and durometer as...HKP-14012$7.74 -
Out Of Stock
HK MP5, MP5K Optic Mount - Low Profile
B&T Brugger & Thomet
$119.95B&T MP5, MP5K - Low Profile Scope Mount B&T low profile scope mount. Specifications: Color: Black Height max: 30.7 mm Length max: 84 mm Length of top rail: 84 mm Material: Aluminum NATO Accessory Rails: 1 Part number: BT-21222 Treatment:...HKP-16875$119.95 -
HK416, MR556 Gas Block Roll Pin
H&K Heckler & Koch
$5.95Heckler and Koch Gas Block Pin for HK416 and MR556 This is the retaining pin for an HK416 gas block. A must-have, as HK recommends using new pins once they are removed or damaged. Size: 5 x 18 mm.HKP-02534$5.95 -
HK USP, P2000SK, HK45CT Match Trigger Return Spring
H&K Heckler & Koch
$8.95HK Pistol Match Trigger Return Spring This is the TRS that is in the Match trigger kit. This spring works better with the SA/DA and is lighter than the standard trigger return spring. This is a great spare part to have on hand...HKP-02666$8.95