Installation headphone helmets FAST / Opscore (19-21mm)

Installation allows you to install the rail on the side of the helmet type FAST / Opscore tactical headsets or ear protectors. Compatible with the rails size 19-21mm. Two metal levers allow for quick installation without the use of tools and metal hoops are adjustable and two settings - closer to or further ear.

assembly fitted with additional side rail in a standard RIS / Picatinny .