With weapons, as well as with replicas, there is always a danger. Maybe in the case of replicas is not so lethal but in the same way can become dangerous.
That's why we would not do anything wrong in applying these four safety rules that we import into airsoft to avoid accidents.
Rule #1: Treat every firearm with the respect due a loaded gun.
Without exception. This is better than sorry after suffering an accident saying "is that I thought I had no gas / battery / bbs / ...". This is the best way to always avoid the biggest source of accidents.
Rule #2: Point the muzzle in a safe direction.
There is no need if you are not playing to do it. So surely we were not going to shoot anyone by mistake (again in the first rule) or at a time when he was not with the proper means of safety to receive the bbs.
Rule #3: Keep your finger outside the trigger guard until ready to shoot.
Surely you've heard many times about this, because what it means is that you never have to have your finger on the trigger until the rear sights are not aligned on your target. This way you will avoid accidental shooting by reflex action when: stumble, startle, fall... Leave your finger on the frame of the replica and you will avoid problems.
Rule #4: Be sure of the target and what is in front of it and beyond it.
Always identify your target before firing. You know that "it is better to ask for forgiveness than to ask for permission" because it does not apply here. You are responsible for every shot you make and, in order not to make mistakes, it is best that you follow this quick and simple mental process: detect, identify and eliminate.