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 MP5K Binary Trigger Group – 2 Round Engraved Binary Housing
HKP HK Parts / FA Franklin Armory
$1,449.95 - $1,499.95Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing Our latest and greatest binary trigger group was delivered with a factory HK German housing professionally...HKP-21114-M$1,449.95 - $1,499.95 -
HK SL8, G36 Magazine Release Axle Pin
GSG9
$10.95GSG9 Magazine Release Axle - USA made for HK G36 and HK SL8 Mag release axle for all G36 and SL8 models. A must-have spare part. Made in the USA. Compatible With: G36<HKP-18255$10.95 -
HK416, MR556 Firing Pin
H&K Heckler & Koch
$54.95Heckler and Koch HK MR556/416 Firing Pin New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon...HKP-00045$54.95 -
HK UMP Magazine - 30 Round - 9mm
H&K Heckler & Koch
$62.95HK Heckler and Koch German 9mm 30 Round Factory Magazine for HK UMP The latest HK German production 30-round magazine is new and hard to find. Compatible With: UMP 9mmHKP-00608$62.95 -
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...HKP-21711$50.00 -
HK MP5 Stock or Brace Adapter - Picatinny Rail
HKP HK Parts
$119.95HKP HK MP5 Picatinny Rail Brace/Stock Adapter Our rail stock adapter allows you to attach any 1913 Style Stock or brace to your MP5. The 1913 style stocks & braces lock in place and provide a better...HKP-21426$119.95 -
HK VP9, P30, HK45C Battle Sight - Vickers Elite
Wilson Combat
$49.95Wilson Combat HK VP/45C/P30 Vickers Elite Battlesight The high profile Vickers Elite Battlesight rear has a .165" wide, deep U-Notch for optimum sighting in low-light, dynamic range conditions and is...HKP-18382$49.95 -
HK USP Night Sights - Tru-Dot - Orange, Green
Meprolight
$99.99Meprolight HK USP Tru-Dot Night Sights - Orange, Green Features: Unequaled Light Performance Brightest Night Sights Available TodayHKP-01907$99.99 -
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...HKP-00263$39.95 -
HK MP5 Tactical Handguard - Low Profile
HKP HK Parts
$99.95MP5 Tactical Handguard - Low Profile Fully adjustable for positive fitment and is built of high-strength aircraft-grade aluminum. Super lightweight and slim profile at less than 5.0 oz. Each...HKP-02526$99.95 -
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...HKP-21351$459.95 -
On Sale
HK Mark 23 Micro Comp - Vented - Threaded 16x1 - RH
HKP HK Parts
Now: $23.95Was: $29.95HKP/H&K Mark 23 .45 ACP Vented Micro Comp - Threaded 16x1 RHHKP-21329Now: $23.95Was: $29.95