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 you to 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 .
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