Should i buy…. to train for royal marines?
Well apparently you are not in the Military yet, but some of your answers state your reference as Royal Marines. Of course they will train you to use the primary weapon of all Royal Marines. I have found it easier to train recruits whom have never fired a weapon, because they have not develop bad habits. Some people that join have bad habits of jerking the trigger, etc and its a little harder to break there habit, but it is always possible. A bb gun is nothing close to a real gun and the kickback power. Just wait til you are in.