Members of Rapid Action Battalion (RAB)-5 arrested an alleged criminal with a foreign pistol, a magazine and a bullet from Dariapur in Chapainawabganj municipality on Monday night. The arrestee was Asim alias Mominul, 19, of Nimtala Kathal village in Gomostapur upazila of the district. RAB sources said a team of RAB from Rajshahi Railway Collony camp raided Dariapur area at around 10pm and held Asim with the arms and ammunition.