IF you have a green gas gun, you’re gonna use the airsoft green gas. Now to load your green gas gun, you’re gonna take the magazine, you’re gonna take your green gas bottle. You’re gonna insert it into the bottom, and when you charge it, you wanna charge it for no more than about three seconds at a time. Three second bursts, and to fill up the magazine all the way it takes around four to five three second bursts. Now that this magazine is charged, I’m gonna load some BBs inside, and after that, insert the mag, put the slide forward, and you’re ready to shoot.