pull the pin on the evod head, the part that is below the white/yellow rubber piece, it will slide out easily, leave a little room then put the evod on the MVP and it should work with no problem, if this does not work take something and try to pull up the center pin in the MVP, but try the evod thing first. I have to pull the pins on my evods a lot, they just get pushed in when used on other devices. You might not want to tighten everything down so much on your mvp, the pin is not floating, it is pressed in, just finger tight your attys on every device, hope this helps, no need to waste money if you can use a simple fix