OK, I was cleaning up the safe today and came across this lost Mag. I don't know what it goes to but it is .45 and just a tad to big to slide into a 1911. I was thinking one of the early Sig .45s that Browning imported back in the day. It is marked made in Spain on the bottom and looks to hold 8 rounds. I don't need it but can't sell it until I know what it goes to. Thanks guys.