Glock 19, the most popular pistol, is often referred to as the supreme amongst the handguns. It hit the market in 1988 for military and law enforcement. This gun existed due to the Austrian Glock 17 seeking a compact version to concealed carry. Glock 19 for sale is a 9mm luger compact-sized gun. It can be used as a regular service pistol or as a backup weapon. It is also considered the most reasonable and convenient-sized Glock.