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 Series Firing Pin Block Spring - Old Style
H&K Heckler & Koch
$9.95HK USP Series Old Style Firing Pin Block Spring In order to use the new firing pin block spring, you also have to upgrade the firing pin, firing pin block, as well as the firing pin block spring. HK part #214192 has been replaced with...HKP-02149$9.95 -
On Sale
HK SP5 Folding Stock with HK Parts Adapter
B&T Brugger & Thomet
Now: $239.95Was: $299.95B&T Brugger and Thomet Folding Stock with HK Parts Adapter for HK SP5 B&T stock with a SP5 HK Parts Adapter. The HK Parts adapter is made from a solid billet of CNC machined aircraft grade aluminum and offers a QD attachment point. Finished in...HKP-20663Now: $239.95Was: $299.95 -
Out Of Stock
HK UMP, USC Ejector Lever
H&K Heckler & Koch
$39.95HK German UMP & USC Ejector Lever - German New HK German OEM part. Each unit fits all calibers of UMP & USC firearms. A great spare to have on hand as they are prone to shearing off with use and must be replaced. Compatible With: UMP .45 UMP ...HKP-00263$39.95 -
On Sale
HK Single Point Sling - Dark Earth
HKP HK Parts
Now: $15.95Was: $29.95HKP Single Point Sling - Dark Earth This sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all Dark Earth heavy-duty corduroy nylon to withstand years of heavy...HKP-09051Now: $15.95Was: $29.95 -
Out Of Stock
B&T 9mm Gov't Contract 30 Round Complete Magazine
B&T Brugger & Thomet
$50.00B&T 9mm Gov't Contract 30 Round Complete Magazine This B&T 9mm magazine is designed for reliable performance in your MP9, TP9, APC9, GHM9, or SPC9. With a 30 round capacity, it meets the standards of government contracts, making it a dependable...HKP-21711$50.00 -
Out Of Stock
HK MP5, HK94 Bolt Group - 9mm - Full Auto
RCM
$459.95RCM HK MP5-E Full Auto Bolt Group Each bolt group incorporates RCM’s F style carrier, MP5-E bolt head, extractor and 100 degree locking piece. This group is 100% US made and the finest out there. Complete and ready to drop in and use. Ideal to...HKP-21351$459.95 -
On Sale
HK SL8, G36 Full Size Bottom and Side Rail Set, Complete - Aftermarket
USA
Now: $55.95Was: $69.95US made Full Size Aftermarket Complete Bottom and Side Rail Set for HK SL8 and HK G36 Comes with the bottom and 2 side rails, left and right, as well as the screws and Allen wrench. Made of aircraft-grade aluminum and laser marked for easy number...HKP-00633Now: $55.95Was: $69.95 -
On Sale
HK VP9SK EDC Tactical Magwell
HKP HK Parts
Now: $47.95Was: $59.95HKP HK VP9SK EDC Tactical Magwell Low profile, every day carry magwell for the HK VP9SK pistol. The low profile mag-well is designed for the average every day VP9SK owner. That would like the enhancements and competitive advantage a magwell offers...HKP-18164-MNow: $47.95Was: $59.95 -
On Sale
HK VP9, P30L Dynamic Pistol Rest
Now: $119.95Was: $199.95USA 1Shot GS Dynamic Pistol Rest - 1SHOT Systems - HK VP9 and P30 Series Pistols Features: Not permanently attached—your grip alone keeps them connected Grip rests securely in the cupped pocket controlled by the firing hand Not classified as...HKP-20525Now: $119.95Was: $199.95 -
HK45, HK45 Compact Trigger Rebound Spring
H&K Heckler & Koch
$8.95HK45 Trigger Rebound Spring This part is also known as the trigger return spring. Compatible With: HK45 HK Tactical HK45 Compact HK45 Compact TacticalHKP-01812$8.95 -
Out Of Stock
HK 3 Round Count Burst Wheel for 4 Position Trigger Packs
H&K Heckler & Koch
$127.95H&K 3 Round Count Burst Wheel For 4 Position Trigger PacksHKP-01639$127.95 -
HK416, MR556, HK417, MR762 Front Folding Sight - 33mm
H&K Heckler & Koch
$179.99Heckler and Koch's 33mm Front Folding Sight for HK416, MR556, HK417, MR762 HK416 Or HK MR556 Front Folding Sight. This item attaches directly to the front gas block of the HK 416, HK MR556 or HK MR762, HK417. Designed to be used in conjunction with -...HKP-02548$179.99