The AGA 62 is a 62 caliber double-action pistol based off a Crosman 357. While it does break open like the 357 and 3357, there is no reason to do so during normal operation. Rounds are held in the lower tube with a spring follower pushing them into an 'elevator' mechanism. As the trigger is pulled the elevator raises the round in line with the barrel just as the marker fires. Releasing the trigger drops the elevator back down and a new round is loaded.