The Glock G19 Gen5 9mm pistol was inspired by the GLOCK M pistols used by the FBI and includes many features the GLOCK community has been asking for. There are over 20 design changes which differentiate the G19 Gen5 pistol from the G19 Gen4 predecessor, including a flared mag-well, a new nDLC finish, the GLOCK Marksman Barrel, ambidextrous slide stop levers, and a grip which has no finger grooves.