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**4V50 Gary** · January 13, 1999, 03:05 AM

I may be mistaken, but originally the Mac10 was a .45 ACP or 9mm weapon and the Mac11 was .380 ACP. Both weapons were designed to be used with the Sionics noise suppressor. I also think a semiautomatic only Mac11 in 9mm was also produced.

Difference was in the size. Mac10 bigger. Mac11 smaller. Sorry I'm not much help.

January 13, 1999, 03:05 AM	#3
4V50 Gary Staff Join Date: November 2, 1998 Location: Colorado Posts: 21,841	I may be mistaken, but originally the Mac10 was a .45 ACP or 9mm weapon and the Mac11 was .380 ACP. Both weapons were designed to be used with the Sionics noise suppressor. I also think a semiautomatic only Mac11 in 9mm was also produced. Difference was in the size. Mac10 bigger. Mac11 smaller. Sorry I'm not much help.