So a rhetorical question that most gun folks should know the answer to...
Who put the AR in the AR-15, AR-16? Why the answer would be:
ARMALITE. The basic Armalite came in two flavors; AR-18 (Select fire) and the AR-180 (Semi-auto only).
The Armalite 18 and 180 were made in 3 places; England, Japan, and California. Mine is from Sterling, made in England.
I bought my AR-180 when I lived in Michigan; it came with a 20 round Armalite marked magazine and 3x40 round Armalite Magazines including one still sealed in plastic. I found the scope on-line; it is an original Armalite Scope; similar to the early Colt AR scopes.
