In wartime, guns are a necessity of war. If the gun has a bolt, the bolt needs to be pulled with your fingers. If your finger is injured, you can only pull the bolt backhand. It takes a lot of courage to pull the bolt backhand, which is cruel. Backhand bolt refers to bandits. The purpose of pulling the bolt backhand is to knock the bullet out and destroy the opponent. If the forehand is injured, you can only pull the bolt in the backhand, which is the rhythm of fighting with your opponent.