Model made fully in Blender 2.72b All preview images rendered with cycles render.
.blend include model with IK rig and cycles materials. .dae and .fbx include model with rig without IK and without prepared materials. .rar include all textures: diffuse, normal, metalic, cavity and ambient occlusion (last two don't uses in prepared materials).
All textures have 8192*8192 resolution and fit only with subdivision levels 2 or above.