Are Leica red dots replaceable?
Yes — the little red “Leica” logo on the front plate of an M6 or M7 (or R6.2 etc.) is just an adhesive sticker. As Jim Brick noted on a mailing list in Sep 2000: The Red Dot on an M6 is exactly that. A cover over the RF vertical adjustment. It’s simply stuck on and will usually be destroyed upon removal. They come in large rolls (or folds), glued to a slick paper backing, I have a half dozen Red Dots – a strip torn off of the roll/fold. Leica Service will send you a strip free.