This is a prototype of the collar used to fit the NV addon to the scope. I wanted to use this on more than one rifle without having to remove the collar or try and buy more.

The collar fits and locks into place and should hold the original inserts in place with a could of M3/M4 nuts and bolts

I also included a cover for the IR lamp, As I am using a separate IR light I wanted something to protect the built in unit.