Except mine says "Ingram M10A1 CAL 9MM/45 A.C.P." with Military Armament Corporation, Stephenville, TX USA under it.

I was looking at one on GB to determine price, and the only one advertised there does not have "Ingram" before the M10A1.

Can anyone tell me the difference??

Thanks.

this can take some hefty research.
The MAC10 and M11 have both been produced by several firms, to include central american blacksmiths. another manufacturer of them is Cobray .. there are probably many more

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it just needs more voltage

Military Armament Corp. was in Powder Springs, GA. Mitch Werbell was the owner, and it went out of business in the mid to late 1970s.
The name/desiogn was subsequently sold to several companies over the years.

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John

The main factor in determining price is not maker as much as action type. If they fire from an open bolt, they're worth 2-3X that of the closed bolt versions. The open bolt semis were made by putting a disconnector in the M10 submachine gun, and ATF ruled that they couldn't be built anymore because of the ease of converting to full auto. Existing ones are legal, but ATF will bust you hard for removing the disconnector.

Buck