The Beretta's APX is designed for military and law enforcement, it delivers superior performance in durability and reliability, ergonomics, trigger and modularity. Utilizing a removable, serialized chassis frame, the APX can be easily modified with replaceable grip frame housings and is simple to disassemble and maintain. Featuring full length slide serrations making slide manipulations easy under any conditions; to accommodate right- or left- handed use, the APX's magazine release button can be easily reversed; slide stop is ambidextrous and the trigger has an audible reset. The APX comes with three interchangeable backstraps so users can best fit their hands and preferences.