3 dot sight and there is no way without seeing the stamps to know if it is a TN or MD gun he Beretta M9 offers a variety of tactical features that make it equally safe, easy to use, and dependable for military personnel as well as for home or personal defense. Its reversible magazine release enables the use of either hand for tactical magazine changes, while its ambidextrous safety-decocker makes the pistol flexible for right- or left-handed persons. The Bruniton finish with military-style markings is highly resistant to sweat and corrosion, and a tool-free disassembly latch makes it simple and quick to take the pistol apart for cleaning. The M9 features an external hammer, 3-dot sight system, combat trigger guard, and an open-slide design making the firearm lighter. This CA compliant model has a black finish, 4.9" barrel, and comes with a 10-round magazine.

Hi Brian and welcome. Beretta USA Customer Service will be able to accurately answer your questions at 1.800. Beretta (237-3882). Cheers and stay safe!