There is no dedicated macro lens for the Nikon 1 system to date. I have tried the 105mm f2.8 VR Micro-Nikkor with the FT-1 adapter. This was successful but, it does not use the normal operation of the V1. I had a couple of old Apochromats from long ago. They are Leica Leitz ELPRO VIa and VIb. I was able to get a 40.5mm to Series VI adapter and today took them out to see how well they would work with the Nikkor 1 30-110mm. Very well as it turns out.
Here are a few shots with them.
The first two, above, were taken with the VIa which provides a bit less magification than the VIb. The a is much easier to handhold since the Depth Of Field (DOF) is extremely shallow. To get a bit more control, I took these pictures of ants with the VIb on a monopod.
A tripod would have been a better choice with a clamp to hold the stalk on the second shot.
Until there is a dedicated CX macro lens, I think I will prefer this to my other macro lenses using the FT-1 adapter.