Rule 34 Dev - armored_core armored_core_vi:_fires_of_rubicon cowboy_shot day double-blade energy_blade explosion fighting_stance glowing glowing_eyes green_eyes gun handgun highres holding holding_gun holding_weapon mecha mecha_focus midair missile_pod no_humans outdoors robot science_fiction solo steel_haze thrusters twitter_username uungunover weapon weapon_on_back|20836997064