An expandable spinal implant for insertion in a disc space between adjacent upper and lower vertebral bodies, the expandable spinal implant comprising: a body portion having an interior cavity being configured to receive at least a portion of a carriage portion ; the carriage portion including a threaded aperture therethrough, the carriage portion being moveable between a retracted position and an expanded position relative to the body portion , and the carriage portion including at least one slot therethrough, the carriage portion being configured to support portions of an expandable portion , and the at least one slot being configured to receive a pin for attaching the portions of the expandable portion to the carriage portion ; the expandable portion including an upper jaw portion and a lower jaw portion , the upper jaw portion and the lower jaw portion having apertures therein for receiving the pin therethrough to attach the upper jaw portion and the lower jaw portion to the carriage portion ; and a deployment portion including a deployment screw and a yoke portion engaging the deployment screw , at least a portion of the deployment screw being received in the threaded aperture of the carriage portion , and the yoke portion including an aperture therein for receiving the pin therethrough to attach the yoke portion to the upper jaw portion , the lower jaw portion , and the carriage portion , the deployment screw being moveable between a first position (P 1 ) and a second position (P 2 ) via rotation thereof with respect to the threaded aperture of the carriage portion , wherein rotational movement of the deployment screw serves to move the yoke portion and the pin received therethrough along the at least one slot of the carriage portion , and movement of the pin in the at least one slot serves to move the upper jaw portion and the lower jaw portion between a closed position and an open position. a body portion having an interior cavity being configured to receive at least a portion of a carriage portion ; the carriage portion including a threaded aperture therethrough, the carriage portion being moveable between a retracted position and an expanded position relative to the body portion , and the carriage portion including at least one slot therethrough, the carriage portion being configured to support portions of an expandable portion , and the at least one slot being configured to receive a pin for attaching the portions of the expandable portion to the carriage portion ; the expandable portion including an upper jaw portion and a lower jaw portion , the upper jaw portion and the lower jaw portion having apertures therein for receiving the pin therethrough to attach the upper jaw portion and the lower jaw portion to the carriage portion ; and a deployment portion including a deployment screw and a yoke portion engaging the deployment screw , at least a portion of the deployment screw being received in the threaded aperture of the carriage portion , and the yoke portion including an aperture therein for receiving the pin therethrough to attach the yoke portion to the upper jaw portion , the lower jaw portion , and the carriage portion , the deployment screw being moveable between a first position (P 1 ) and a second position (P 2 ) via rotation thereof with respect to the threaded aperture of the carriage portion , wherein rotational movement of the deployment screw serves to move the yoke portion and the pin received therethrough along the at least one slot of the carriage portion , and movement of the pin in the at least one slot serves to move the upper jaw portion and the lower jaw portion between a closed position and an open position. <EOS>