American Arms, Inc. was located in Kansas City, MO, from about 1985 to 2000. They imported various guns, including SA revolvers, semi-auto pistols, reproduction Winchesters, etc., mostly from Italy and Spain.
I would agree with Scorch in general on Spanish guns, but American Arms imported some very good ones (the SxS Grulla sold for $3100 in 1994). Most were in the $600-1000 range, and average around $500-700 today in top condition. Look closely at the gun and see if there is not another name or marking on it somewhere.
Jim