Hi Marty,
I don't think it will be a straight forward swap. The Micra has a smaller diameter pivot than the bigger LM tools, so swapping an opener from them will require either a bigger pivot on the Micra or trying to fill the hole on the bigger tool for the smaller pivot. If you go bigger pivot, you will have to drill the remaining tools to fit that.
Some pics for explanation. PST can opener with some Micra tools. Sorry for the blurry ones, they are difficult to take photos of.
Pete