Hi all, I'm using the older M Monochrom and was disappointed that the newer M grip and finger loop can't be used for older Ms. I'm no fan of neck strap and tried using a wrist loop for a while. I kept searching for an alternative way to attached a finger loop to older Ms until I found Leicagoodies' sling loop. I bought 1 online but was disappointed with the quality of the canvas. As such, I looked for a local leather maker and custom made one. Very happy with the result and am now shooting with this custom finger loop. Can be used for older Ms.