GHK Custom M4 SD


  • Gas blowback with recoil
  • Green Gas Magazine
  • High gas efficiency

1 in stock



Hello buyer, please note!

To purchase this Restricted Airgun, you MUST be 18+ Years old with proof of an Airsoft Club Membership within NZ (Either a club ID OR a written letter from the club).





Custom M4 SD – Gas Blowback Rifle



The Arena Custom modified GHK M4 upgraded with:

  • M-LOK Aluminium hand guard
  • Foam filled suppressor
  • low profile flip up battle sights
  • VLTOR adjustable stock
  • 60 degree Super Macron Maple Leaf Hop-Rubber


One of the best and most realistic Airsoft guns available on the market! Full recoil action and field strips like the real M4! This GHK is manufactured very closely to the real thing, with CNC milled aluminium casted receiver, CNC steel parts and finished in manganese phosphate.

Not only did GHK put extreme efforts into the shell of the gun, the barrel is a tight bore 6.03mm for high accuracy, steel fire control group for durability, high quality German made recoil spring and high efficiency gas magazine.


Its quite common for Gas Airsoft Guns to freeze up in colder temperatures, surprisingly the performance on these GHK guns are awesome even in temperatures around 10 degrees they don’t freeze up! The high efficiency gas system of the M4 will shoot 60 rounds on Full-Auto and 120 rounds on Semi-Auto with one full green gas magazine fill.



  • Length: 700 mm – 780 mm
  • Velocity: 310-330 FPS (6mm 0.20g BB)
  • Weight: 2700 g
  • Magazine capacity: 40 rounds (recommended loading 30 rounds)
  • Material: Aluminum, Steel, Nylon reinforced polymer
  • Firing modes: Semi & full auto
  • Power source: Green Gas (with blowback recoil)
  • Package includes: Gun, magazine, BB loading tool, box and instruction manual





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