The no-frills, lightweight polymer-frame semiautomatic pistol forces the user to handle the gun with extreme caution. The Glock will fire if the trigger is moved less than half an inch, compared with twice that distance for most other police guns.
And some Glocks will shoot with as little as 3 1/2 pounds of pressure on the trigger -- light enough for a 5-year-old to fire the gun. Glock started offering optional trigger pulls of up to 12 pounds in the mid-1990s after the New York City Police Department -- plagued by a string of police shootings -- demanded a heavier trigger.
The gun has no manual safety to prevent it from firing if the trigger is accidentally pulled. In fact, the gun's safety features -- extremely effective in preventing discharges if the gun is dropped or hit -- automatically are turned off every time the trigger is depressed.