MadBull - Airsoft Barrel Nut Washer

Sale price$ 7.95

Pickup available at Gilbert Arena

Usually ready in 24 hours

Main Function: To eliminate gap between rail and upper receiver. These washers will ensure a contour fit between barrel nut and upper receiver, eliminating misalignment and RIS instability. The MB Barrel Nut Washers come in 4 sizes to fit many different configurations.


  • 0.1mm (1)
  • 0.15mm (1)
  • 1.5mm (1)
  • 2mm (1)


Part Number None
Material Metal Alloy
Color Silver
Manufacturer Madbull
Compatibility M4 RIS and other compatible AEG Rifles

DISCLAIMER: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.

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