Description:
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.
Weight: 10g
Material: Metal
Features:
- Eliminate gap between rail and upper receiver
- Precisely aligns fastening screws on RIS systems
- Ensures stability
- Prevents RIS from angling during installation
Package include:
- 0.1mm X2
- 0.15mm X2
- 1.5mm X1
- 2mm X1
