Glock 19M: Released in 2016, the 19M was designed in response to an FBI solicitation to get a new compact 9mm pistol. Differences with the Era 4 model incorporate removal on the finger grooves, ambidextrous slide lock, rounded slide nose profile, flared journal very well with new magazine baseplates, as https://zanderynwch.blog-kids.com/22325397/getting-my-glock-switch-to-work