Gibby, the mags with the capital C on the bottom are make by Checkmate. They are the current supplier of Colts 1911 mags.
Those are the next ones you should try, TWR. Colt knows a thing or two about feeding a 1911.
Da! I know that. Brain fart way too early this morning. Thanks for alerting me to my mistake. I fixed it. I hate getting old. Should have proof read.
Kind of like me typing "make" when I meant "made". 
