For sale is used 46mm to Leica M mount adapter. It is generic brand. It will allow you to use any lens with 46mm filter to mount on Leica M mount cameras for macro photography.
It fits lens perfectly, and locks properly. It is not loose and does not wobble on Leica cameras.
Shipping is free within USA and $7 worldwide via USPS first class air mail service.
Lens adapter has been used, but it looks and works good.