A concealed carry holder shot an armed man during a dispute Monday night in South Shore on the South Side. according to Chicago police.A 30-year-old man was standing outside in the 7200 block of South South Shore Drive around 9 p.m. when he began arguing with someone inside a vehicle, police said. The two began fighting and the concealed carry holder noticed the other man had a gun, police said. The 30-year-old then opened fire, striking the man once in the chest. The man who was shot went to Jackson Park Hospital, where he was in fair condition, police said. A weapon was recovered at the scene, officials said. Officers arrested the wounded man at the hospital. Charges were pending.