A 1911 in 45acp only holds 7 rounds in the mag anyway. Not sure about ones with the sub calipers like 38super and 9mm, but why carry a 1911 thats not a 45? Make as much sense as going to New Jersey. LOL They do make extended mags and have made some guns modified to handle staggered round magazines. But 99% hold 7 in the mag and one in the spout.