The Glock G20 Gen 5 MOS is Lefty-Friendly. Although the Glock G20 Gen 4, and other Gen 4 Glocks, have a reversible magazine catch button, the Glock G20 Gen 5 MOS has an ambidextrous slide stop lever ...

Glock Gen 5 pistols come installed with the GMB, or Glock Marksman Barrel. Glock claims that this barrel has improved rifling, which naturally lends itself to greater accuracy.

The Glock 19 Gen5 MOS FS seems to be a supremely reliable defensive pistol with a feature set reflecting the needs and desires of modern defensive shooters.