Disclosed are implementations of an accessory mount for a machine gun spade grip. An example accessory mount is configured for attachment to a firearm spade grip and comprises: a bridge member having a top and a bottom, the top of the bridge member includes a mounting interface and the bottom of the bridge member includes a cutout adapted to receive a portion of the firearm spade grip therein; a clamp member removably attached to the bottom of the bridge member; an actuator arm having a base and a distal end, the base of the actuator arm is attached to the top of the bridge member; and a paddle actuator rotatably connected to the distal end of the actuator arm. Some implementations of the accessory mount include a cross-bolt safety axially displaceable between an active position, whereby rotational movement of the paddle actuator is prevented, and an inactive position.