Red Dot Sight mount on a Nikon 1 CX 70-300mm f/4.5-5.6 VR Lens with Nato Rail

This is a Nato Rail on a lens collar for mounting a Dot Sight on a Nikon 1 CX 70-300mm f/4.5-5.6 VR.
You need one countersunk hexagon screw M5x18mm to attach the mount to the lens.
In adition you need 2 M3 screws and nuts to attach the rail to the collar.