.45 ACP. 4.4" barrel length. SN: 37A021426. Black Nitron finish to slide with FDE frame mounting pebble texture rubber HOGUE grips and factory two-dot sights. Short recoil operated DA/SA autoloading pistol fed by detachable single stack magazines featuring a decocker to left frame. Item additionally mounts an accessory rail to the dustcover. Standard make and model markings including SIG USA marks to the right frame.