SIG M400-Tread 11.5 inch Upper with BCG. NO Charging Handle near North, Columbus, OH

Bought this around five years ago from a friend who claimed to had not shot it. Likewise I had not put any rounds down range with it as I intend to use it on a SBR build but just never got around to committing to the project. Since then it has sat in my closet wrapped in bubble wrap. 

Chambered in 556.