"To see the helmet and [the round] went layer after layer and he's still here -- so yeah, I was in shock," Aaron McQueen, the staff sergeant's wife, said during a press conference at the post.
And while she knows how close he got to not coming home, their three children don’t understand.
"I don't really understand how to explain it to them other than them looking at that [helmet] periodically and telling them the story, 'Yeah, this is the day daddy came close,'" Staff Sgt. McQueen told WJLA.
He said that he wasn’t always as fond of the helmet as he is now, pointing out it was not comfortable and was bulky and heavy. But now he has a different view.
"I was sorely mistaken. This helmet works and I am a living testament to it," the staff sergeant told WJLA.