Open Carry Legal in Colorado Open Carry is legal in Colorado (no permit required) as long as you are in a place it is allowed. You are not a prohibited possessor, and are over the age of 18 and not intoxicated. The Denver Metro area is off-limits for open carry as they have a hometown rule which means you can be arrested in the metro area for open carry. Ever go into the grocery store and see some guy who looks like he doesn’t know what day it is and he’s carrying an open-carry gun. Yes outside the waistband hanging on his leg or out of his back pocket….you know…