The advantage of pistols over revolvers lies in the somewhat faster reloading of magazines that carry more bullets that a revolver's five or six rounds. This is why most police and military organizations use pistols. Also, pistols are often thinner and can be worn concealed better than revolvers. Pistols are generally regarded as being safer than revolvers. A revolver can fire accidentally if dropped. A pistol rarely fires if dropped. A common feature of pistols is a lever called a safety. The safety prevents the pistol from firing even if the trigger is pulled. To fire a pistol, first remove (turn to the off position) the safety.