Some of the 8-round magazines are just a little longer, so they come with the plastic gap-filling bumper. That is the case with the Ruger/Checkmate mags.are the 7 round and 8 round magazines the same length. and ideas on where to get bumper pads/floor plates for the 7 round magazines?
I don't know if your commander is steel or aluminum frame.ordered some from chip mccormick, worked great.
Stay away from kimbers magazines. My kimber did not like them and my Ruger does not like them. They are now relegated to reloading my blackhawk. Ha ha about all they are good for.