This is a robtic Fourlegged Turret that can be used for your projects. This is fully rigged and has some animations for you. It also has alternate color schemes (Black with red stripes and Snow camo). You may have to scale it to fit your scene properly, the height compared to the ue4 mannequin is above. Enjoy.
Planned in the future: I would like to create a Blender rig, More weapon types, FBX animations