The Beretta M9A4 is built to exceed the standards of most tactical shooters, the M9A4 blends the proven design of the M9. Featuring red-dot optic compatible; slide and dovetailed tritium night sights; beveled magazine well; Beretta Vertec frame; aggressively textured Vertec-style thin grips; 3-Slot Picatinny Rail; oversized mag release button; enhanced short reset trigger and replaceable grip panels. The Steiner MPS Micro Pistol Sight brings battle-proven durability and mil-spec ruggedness in an all-metal construction. Enhanced sidewalls completely seal in the emitter and a recessed window with a metal hood blocks objects from reaching the front lens. 3.3 MOA Illuminated red dot with 6 day/2 night brightness settings. The M9A4 Optics Bundle includes Steiner MPS Micro Pistol red dot sight, factory installed, three DLC coated magazines, FDE ammo case and gun lock.