CO2 Immediately Discharges All Gas and Causes Slide to Blowback

Hey, I just bought a Springfield Armory 1911. Very cool airgun. It's only about a month old, but just recently when I load a new CO2 cartridge, as I tighten the screw that tightens the CO2 so that the seal is punctured, all of the CO2 gas escapes and causes the slide to blowback and the CO2 cartridge is empty. Any thoughts?