The lightweight frame housing is made of fiberglass reinforced technopolymer. The APX’s extremely low profile and snag free design make it easy to carry and draw from a holster. Ease of use was the key driver in the development of the APX. A slide catch lever is located on both sides of the frame. The operating/locking system is based on a tilt-barrel, locked breech. Beretta APX pistols have a unique feature that allows the user to deactivate the internal striker mechanism prior to disassembly. This means the pistol can be field stripped without pulling the trigger. The Trigger Safety stops the trigger from traveling rearward through inertia, in the event the pistol is dropped. When the trigger is intentionally pulled, the Trigger Safety is instantly deactivated.
Frame safety, magazine safety, and a loaded chamber indicator are available on request. To accommodate right or left-handed use, the APX’s magazine release button can be easily reversed. The high-definition 3-dot sight system is designed for quick target acquisition. The new sight system, patented by Beretta, allows the user to adjust both front and rear sights. The sights can be removed for replacement with other types of sights. Thanks to a newly patented modular system, the pistol adapts to different hand sizes with interchangeable back-straps of different thickness and configuration for individualized performance. The pistol comes with a standard Picatinny rail (MIL STD 1913) under the barrel.