This $20 tripod mount is my go to mount for my M3 and M6II. The PX1R from promediagear.com. It fits the M3 perfectly. The M6 Mark II fits close to perfect. The LCD won’t close completely but besides that, it’s perfect. This mount will also fit the M5 perfectly. Update: The PX1R is out of stock indefinitely so get the PX1 instead. It will probably fit better since it doesn’t have the ridge.