If I remember I'll try to get a measurement tonight when I get home. Unless somebody else beats me to it.
If you're thinking about coloring in the stripes and "M" then I've seen it done before using colored tape. I didn't care much for that. If it were thread or leather or something else similar to that then it might look ok, IDK. Good luck.
I've been assimilated. 6MT/ZPP/18"/PS extended.