Yep Garcia Bronco. I had one in the late 70s. F.I.E. out of Washington D.C. imported them into the USA. Some years later a company called Bauer made them as well and labelled it the Rabbit. I guess in those more innocent days it was easier to bring them into Canada. I've never seen the Bauer model up here, but the Broncos turn up pretty regular on our used gun market.
Front fully exposed trigger when pulled draws a locking pin, so it can pivot and expose the breech for loading/unloading. The barrels were steel, but just about everything else was aluminum.
IIRC, the trigger was steel, the extractor maybe and that lower bar coming off the lowest part of the pistol grip, and not much else I think except for a few small internal parts. The hole for the locking pin was prone to excessive wear because the locking pin was steel going into an aluminum mortise. I would never buy one without a thorough visual inspection. I would say the more wobbly the action is, the more worn out the locking mechaism is. Sights were rudimentary but serviceable for realistic tasks. Very light, but easier to damage. Keep in mind though, as we can plainly see, there's not one speck of wood on this firearm, and that's f'ing cold to carry in your hand or have against your cheek at -35 degrees!! Not for everyday hunting IMO, but an okay emergency small game firearm and that's about it. Front half and rear half break apart for easier transport. At least my 22/410 combo gun was that way.