Early AMAC Enforcer

Looking for some info on an enforcer pistol I picked up. Was told was an Iver Johnson and, since I have the carbine already, I figured a pistol would match nicely. Turns out to be an AMAC Enforcer with the serial Number EF 00331, which is lower than the earliest known one from the website. I haven't seen one before and apparently the keepers of all things M1 have only seen the one they pictured. Does anyone know how many were made under AMAC? Should I put this in a museum somewhere or feel no guilt bubbaing up a commercial carbine into a tiny pdw? Any insights are appreciated.