At a Florida gun show recently and came across two AGs, which is a rarity, and a bag full of CO2 cartridges.
One was the Gamo PT-85 pellet pistol. I've often debated whether I wanted to buy that one in the past and since it looked in good condition and the asking price was reasonable, I thought I would take a chance. It holds CO2 and performs well so I consider myself lucky.
The other I had never heard of; an old Crosman PRO77 BB pistol, also in good condition and I took another chance. Glad I did as it also holds CO2 and performs very well. It has been out of production for a long time, which is unfortunate since it has a metal slide and polymer frame that has a nice feel in my hand, smooth trigger, and is a single action half-blowback. Accuracy is good for can plinking.
The mag is kind of a delicate plastic that I hope lasts since my search for extras has come up negative. If anyone should happen to know of a source, I would appreciate a heads up.