The Sig Sauer P365 3.1" 9mm MS OR XRAY3 Blk is a micro-compact, optic-ready semi-auto pistol from the P365 series that combines concealed-carry ergonomics with defensive performance, featuring a 3.1-inch barrel for a reliable balance of accuracy and maneuverability in close quarters and everyday carry scenarios. The MS configuration offers user-friendly controls and a CA-compliant design tailored to California regulations while the XRAY3 day/night sights deliver rapid target acquisition in low light or bright conditions for self-defense and duty use; the optic-ready slide accepts popular red-dot footprints to speed target transitions and reduce sight acquisition time. Built on Sig Sauers striker-fired platform, this model provides consistent trigger characteristics and proven reliability for range training, CCW, or off-duty carry, and it arrives serialized and requiring FFL transfer in accordance with federal and state law. Black finish and compact dimensions make it easy to conceal under a variety of carry methods, and the 9mm chambering offers controllable recoil, wide ammunition availability, and effective terminal performance for defensive loads.