Haven’t tried the Civil Defense in anything but 9MM (Ruger LC9S). Never thought about how much total carry weight would be saved in a gun that normally carries as much lead as a .45.
I carry them in an XDS and it lightens thing up noticeably. I’ve run some through my stainless Commander, too and they function just fine. I swear you could use the cavity in the .45 for an ashtray.
May we never need to use them.
Best,
L