They are PCP not CO2....big difference but same concept.I had no idea hunting deer size game with a Co2 gun was a thing until now. I actually got an email from Pyramid Air (where I ordered my air rifle) about the same subject after I saw your post talking about it. They have some guns shooting a 500g projectile at 1000 fps!
To the OP, you should look into the blowback Glock CO2 pistols...I have several (am even contemplating selling one of them on here since I went crazy and got more than I need). I will try to post pics when I can in this thread just for show, but they are real fun. I also have the non-blowback G19 shown above and it is super accurate for a smooth bore BB pistol.
To the OP, if u like CO2, look into the Crosman 2240...you can build it into anything you like; it is sort of the "Ruger 10/22 of airguns". I have several and some are carbines which are real fun. I have been meaning to post pics of those as well. LMK if anyone interested in hearing more.
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