What must accompany a closed action on a rifle?

A closed action on a rifle must be accompanied by a Clear Barrel Indicator. This device is critical for safety because it visually indicates that the barrel is free of any ammunition or obstructions. The purpose of a Clear Barrel Indicator is to help prevent accidents by ensuring that all personnel can see that the rifle is unloaded and safe to handle.

By using a Clear Barrel Indicator, it reinforces safe handling practices in a range or training environment. It allows instructors and other shooters to immediately identify that the rifle is in a safe condition, promoting an overall culture of safety. This practice is essential in maintaining discipline and ensuring that everyone understands the importance of checking a firearm's status before handling or transporting it.