Smith & Wesson, CSX, Single Action, Semi-automatic, Metal Frame Pistol, Micro Compact, 9MM, 3.1" Barrel, Aluminum Alloy, Armornite Finish, Black, 3 Dot Sights, Integrated Trigger Safety and Ambidextrous Thumb Safety, 12 Rounds, 2 Magazines, (1) 12-Round & (1) 10-Round, Inerchangeable Backstraps and Swappable Magazine Release Button