Glock 19M: Released in 2016, the 19M was created in response to an FBI solicitation for any new compact 9mm pistol. Differences from the Technology four design include things like removal of the finger grooves, ambidextrous slide lock, rounded slide nose profile, flared magazine properly with new magazine baseplates, and https://glockswitch93715.ampedpages.com/5-simple-statements-about-glock-switch-explained-49452131