Here’s What You Need to Remember: The Glock 19 is popular for a reason. But in actual combat, the 9mm ammo has left something to be desired, which is why the .40 S&W was invented for U.S. officials.

Here’s What You Need to Know: In comparison to the 19, the Glock 23 is more expensive and more difficult to use. But those drawbacks come with a much-needed increase in stopping power, making this ...