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)
|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.