GF012S Red dot laser sight with clamp mounting bracket

Laser Sight with figure-8 barrel mount.
Length: 75mm
Diameter:16mm
Laser wavelength:635~660nm
Output power:<5mW
Range:500 yards at night
Laser sight casing and figure-8 mount material:Aero-space aluminum alloy
Powered by 3 AG13 batteries (Not Included)
Laser color: Red.
Package Included:
Laser Sight with mount
Allen Wrench
User Manual

What diameter guns can this attach to (minimum and maximum size)?
Tube diameter for barrel: 12mm(+6mm) - 14mm(+6mm)

Mount Size: about 45x45mm/ 1.77x1.77"(LxW)