With a DA only firearm, the hammer , or striker as the case may be, is not cocked. The action of depressiong the trigger to fire performs the Double Action of cocking the gun and then firing. The hammed is a rebound type and will rest in the down position but not in contact with the firing pin. The hammer will contact the firing pin ONLY when the trigger is pulled all the way back. As soon as the trigger is released, the hammer "rebounds" away from the firing pin. You will be OK carrying with a round in the chamber. Thank Ralph Nader for that.