I assume it is a pilot’s rifle, it hardly seems the thing for the general market.
Just did some research using the name you sent. The one I had in the 70’s was a Garcia Bronco. I remember it was advertised as a pack rifle
Here is an interesting link from the Gunbroker forums on the company. Look about 2 replies down
http://forums.gunbroker.com/topic.asp?TOPIC_ID=65074