Madbull Airsoft Barrel Nut Washer (MBNW)

Details: 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. Package include: - 0.1mm X 2 - 0.15mm X 2 - 1.45mm X 1 - 1.85mm X 1 Features: - Eliminate gap between rail and upper receiver - Precisely aligns fastening screws on RIS systems - Ensures stability - Prevents RIS from angling during installation Brand Compatibility (Optional)

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