Attaches to a 7/8th Inch barrel to cover the gap between the barrel and RIS handguard.
OD: 1.48" or 37.6mm ID: 7/8" or 22mm W: 0.32" or 8mm
Comes with 4 x M4x6 socket set screws (Driver: 2.0mm) and 4 x M4x6 Button Head Screw (Driver: 2.5mm)
For use with these Handguards