A guy started bring his 9 year old son out to the monthly USPSA matches with an airsoft glock and a CR rig last year, and when the squad was done the stage the kid would run thru it. Now he has a glock with a 22 upper on it, the poppers don't usually fall but he'll still hit them. evey now and then he has to shoot under a wall since the port is too high but other then that he runs the stages straight up.