Why the FBI and Police Prefer the Glock 23 to the Glock 19

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.

Why is the Glock 19 pistol the favorite of the world's most elite forces?

Pachmayr Tactical Grip Glove for Glock 19, 23, 25, 32, 38 : Gun Grips : Sports & Outdoors

Glock 17 Vs 19: Which One Is The Best For Concealed Carry

3 Glocks Used by Agencies in the U.S. Department of Justice

Comparison: M&P9 2.0 C VS Glock 19 » Concealed Carry Inc

Glock 23 Review: Is the .40 S&W Dead? - Pew Pew Tactical

US Secret Service switching to 9mm Glock pistols - ABC News

Photos of an actual FBI 19M gun - these are what DLC internals look like

Glock 23 Review: Is the .40 S&W Dead? - Pew Pew Tactical