5KU 7" Aluminium Outer Barrel For M4/AR-15 AEG

Code: 5KU-120
  • Aluminium construction
  • 14mm CCW male threading
  • Compatible with M4/AR-15 AEG

If you are working on your CQB build you must be looking for the shortest barrel out there, and right now, this is it! The 5KU 7" Aluminium Outer Barrel For M4/AR-15 AEG is compatible with most M4/AR-15 AEGs and is constructed from aluminium for a perfect balance between low weight and high strength. 

The barrel is threaded at the tip with common 14mm CCW male threading, meaning you can mount the most common muzzle devices on the market with ease, including tracer units, suppressors and flash hiders in various styles. Also present are grooves in the underside to allow a gas block or M4/AR-15 triangular front iron sights to be mounted, though this is not essential. If you need your M4 to be shorter this will get you halfway there, but don't forget you'll need a shorter inner barrel too! 

Full description



  • Aluminium construction 
  • 14mm CCW male threading - Ready for a tracer or suppressor
  • Recesses for mounting an M4/AR-15 triangular front iron sight are present 
  • 7-inch barrel - Great for CQB builds and compact platforms
  • Compatible with M4/AR-15 AEGs

Package Includes 

  • 5KU 7" Aluminium Outer Barrel For M4/AR-15 AEG



Parts & Accessories Type
External Parts
External Part Type
Outer Barrel
Package Includes
Metal outer barrel
Patrol Base - Warning Icon
Patrol Base - Warning Icon
Parts Fitting


Colour Wheel Greyscale
Item Colour
Construction Icon

Weight and Dimension

Product Height
Approx. 3cm
Product Length
Approx. 18.2cm
Product Width
Approx. 3cm
Weight KG Icon
Weight (KG)
Approx. 0.103kg

Part Specific

Weapon Platform
AR, M4 / AR-15 / M16, Assault Rifle,

Suppressor Specific

Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
Icon Thread Type
Outer Barrel Thread Type