Madbull Barrel Nut Washer set

Price: $9.25 – $10.36 — In stock at 2 retailers.

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. Features: 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.