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 Stock or Brace Adapter - .22LR - Picatinny Rail
HKP HK Parts
$134.95HKP MP5 .22LR Picatinny Rail Brace/Stock Adapter Our rail stock adapter enables seamless attachment of any 1913 Style Stock or brace to your MP5.22. The 1913 style stocks & braces firmly lock in place, offering superior cheek weld height compared to...HKP-21526$134.95 -
HK VP9SK Holster - DCH Comp Carry
Comp-Tac
$79.95Comp-Tac HK VP9SK DCH Comp Carry Holster The dual concealment holster, or the "DCH", is the best solution for users who need versatility in their carry methods. This holster offers both IWB (inside-the-waistband) and OWB (outside-the-waistband) options...HKP-20072-M$79.95 -
GSG9 HK G36, HK G36K Folding Stock
GSG9
$115.00HK G36 Full Length Stock HK G36 10.5" Stock complete for G36 firearms. The G36/G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter stock choose the G36C length stock. Each stock comes complete with...HKP-18219$115.00 -
HK VP9 Magazine - 9mm - 22 Round
Strike Industries
$69.95Strike Industries 22 Round HK VP9 9mm Magazine Strike Industries +5 magazine extension coupled with a 17 round factory German magazine body adds 5 additional rounds total for a fully assembled 22 round HK VP9. Each mag comes fully assembled and...HKP-19608$69.95 -
HK417, MR762 Bench Mat
HKP HK Parts
$24.95HK MR762, HK 417 Bench Mat Our HK MR762, HK417 bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch MR762 & HK417 models. Have fun and learn while you work on your favorite H&K firearm. The soft top...HKP-17170$24.95 -
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
HK416, HK417, MR556, MR762, AR-15 Selector Detent Spring
H&K Heckler & Koch
$9.99H&K HK MR556/MR762/416/417/AR15 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 AR15, M4 & M16HKP-02657$9.99 -
HK/HKP HK MP5 .22 A2 Stock
HKP HK Parts / Heckler & Koch
$179.95H&K/HKP HK MP5 .22 A2 Stock Upgrade your HK MP5 .22 rifle with the precision-engineered A2 fixed stock from H&K & HK Parts. Designed specifically for the .22 LR, this stock provides a solid, stable shooting engagement while maintaining the...HKP-21937-M$179.95 -
B&T GHM9 Stock or Brace Adapter - Telescopic
B&T Brugger & Thomet
$510.00B&T GHM9 Telescopic Brace/Stock Adapter Switzerland manufactured telescopic brace adaptor for Gearhead Works Tailhook MOD 1. Tailhook is not included. ***Stabilizing braces sold by HK Parts are designed and intended for the exclusive application as a...HKP-18946$510.00 -
HK MP5 Receiver Flat- 9mm
LSC
$239.95MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...HKP-01431$239.95 -
On Sale
Thread Protector - .40 S&W - Tactical - 14.5x1 LH
HKP HK Parts
Now: $11.95Was: $24.95HKP .40 S&W Tactical Thread Protector - Threaded 14.5x1 LH Fits all HK barrels that are threaded 14.5x1 LH. This is the correct thread protector for all the HK .40 S&W metric threaded barrels. This will also fit non HK related barrels as well...HKP-00298Now: $11.95Was: $24.95 -
HK416, MR556 Gas Block - Slimline - Vented
H&K Heckler & Koch
$145.95Heckler and Koch Low Profile Complete Gas Block for HK MR556, HK416, HK German Factory slimline, low-profile gas block for the HK416 and HK MR556. This is the factory-correct gas block found on the MR556. Correct gas block to use with...HKP-02660$145.95