Garand Thumb gets his hands on the new Glock 19 Gen 5 pistol for a first impressions video. According to Glock, the Glock 19 Gen5 features over 20 design modifications as compared to the Gen4. Some of these are the GLOCK Marksman Barrel, nDLC finish, ambidextrous slide stop levers, no finger grooves pistol grip, and a flared mag-well.