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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
8" Picatinny Mount Stock or Brace Bar - JMAC Customs
JMAC Customs
Now: $250.95Was: $279.858" Picatinny Mount Stock or Brace Bar - JMAC Customs (A)rm(B)ar(8)inch(R)ise + AB-BA Brace Adapter + our 1913 Folding Mech (not assembled) Features: Modular Design - Brace/Stock with many mounting options Integrated QD Sling Socket 8" Length 7075...HKP-21247Now: $250.95Was: $279.85 -
Out Of Stock
HK VP9 F3 Trigger - Full Flat Face
Lazy Wolf
$139.95LWG - HK VP9 F3 Trigger – Black Cerakote In a collaboration with Lazy Wolf Guns, HK Parts offers the finest drop-in, aftermarket triggers for your HK VP9 & VP40 handguns. Features: Made in the USA True drop-in installation using the...HKP-20818$139.95 -
Out Of Stock
HK G36 Magwell
H&K Heckler & Koch
$79.95H&K HK G36 Magwell - Black Factory German G36 magwell. Great for a replacement component or a critical piece of the puzzle when converting an SL8 to a G36. Compatible with factory HK and Magpul G36 magazines alike. Compatible With: HK...HKP-00625$79.95 -
On Sale
Bore Boss Pull-Through Bore Cleaner - 7.62 / .308 / .30
Real Avid
Now: $8.95Was: $10.95Real Avid Bore Boss Pull-Through Bore Cleaner - .30/.308/7.62mm From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The...HKP-19399Now: $8.95Was: $10.95 -
On Sale
HK USP Mag Pouch - Twin - .45 ACP
Comp-Tac
Now: $50.95Was: $60.95Comp-Tac HK USP .45 ACP Twin Mag Pouch The Comp-Tac Twin Magazine Belt pouch is an outside the waistband holder that carries two magazines attached together. Designed to be worn at 9:00 for a right handed shooter this is an excellent way to carry more...HKP-17495Now: $50.95Was: $60.95 -
Out Of Stock
HK416, MR556 Flash Hider - 3-Prong - 1/2x28
Surefire
$168.95Surefire (5.56/.223) 3-Prong Flash Hider - Threaded 1/2x28 The flash hider is engineered for M4/M16 and variants with 1/2x28 muzzle threads. Its patent-pending design reduces muzzle flash by over 99% compared to a plain muzzle. Built from US...HKP-17261$168.95 -
Out Of Stock
HK416 E1, MR556 Charging Handle - Ambi - RAL8000
H&K Heckler & Koch
$169.99New RAL 8000 HK Designed HK416, MR556 Ambidextrous Charging Handle (E1). The E1 HK 416 FDE charging handle release latch has the ability of being swapped from the left side (E1) to the right sight (E2) with simple tools. HK's own design boasts a smooth...HKP-18502$169.99 -
On Sale
HK G36, SL8 Ejector Spring
USA
Now: $15.95Was: $19.95HK G36 & SL8 Series Of Ejector Spring. Great item to have on hand as this is prone to wear and breakage- US.HKP-18374Now: $15.95Was: $19.95 -
HK G36, SL8, UMP, USC Handguard Sling Loop - Ambidextrous
H&K Heckler & Koch
$40.95UMP, USC, SL8, & G36 Ambidextrous Sling Loop Or Eyebolt For Sling - German HK The addition of the HK eyelet creates a sling attachment point that will enable you to mount a sling using any of the hard mounting points located on the forearm of the...HKP-00611$40.95 -
HK Rear Sight Adjustment Tool - Red Handle
H&K Heckler & Koch
$123.95H&K German Red Handled Rear Sight Adjustment Tool A must-have sight tool for all HK 90 series rifles, as well as the HK 416, MR556, and HK 417 rifles. Works to adjust any rear diopter-type HK sight for both elevation and windage. We also offer an...HKP-00080$123.95 -
HK91, G3 Trunnion - Used
H&K Heckler & Koch
$39.95HK German HK G3 & HK 91 Trunnion - Used These trunnions are from demilled G3 parts kits and will have leftover receivers and barrel stubs installed along with factory barrel pins. Please note the picture shows one with the demilled parts removed...HKP-00718$39.95 -
On Sale
HK USPC, HK45C Hybrid Trigger - Volker Precision
Volker Precision
Now: $87.95Was: $97.95HK USP Compact and HK45 Compact Hybrid Trigger Volker Precision hybrid trigger for USP Compact and HK45 Compact models in all calibers. Available exclusively at HK Parts Compatible With: HK USPC (will not fit full size variant) HK45C (will not fit full...HKP-22443Now: $87.95Was: $97.95