Editor’s Note: Glock 19 is the most proven compact semi-automatic handgun on the market today. Chambered in 9mm Luger, the Glock 19 is a versatile compact version of the standard Glock option.  It's great for use as a backup weapon, concealed carry, or service pistol.  The Gen 5 in particular has made some great improvements which include an ambidextrous slide stop lever, flared mag-well, and upgraded barrel design, just to name a few. The G19 has been a favorite amongst police agencies and military units and for good reasons. This gun is simple to operate and easy to maintain, making it a great first gun, CCW, or home defense weapon.