The 19-year-old was put on waivers today and the Soo claimed him. At least one other team was said to be interested in the Burlington native.
The Rangers had been trying to trade Miller without luck in a bid to get him regular playing time, something they couldn't guarantee had he remained at the Aud.
Miller received a lot of interest from teams in the Quebec Major Junior Hockey League and the Rangers put him on waivers with the hope that he'd clear them and land with a club in that league.
Kitchener acquired Miller and a pair of draft picks from Sault Ste. Marie near the trade deadline in 2015 in a deal for Buffalo Sabres prospect Justin Bailey.
The winger had 51 points in 84 games over a season and a half with the Rangers.
His departure means the club has four overage players left on the roster - G Dawson Carty, D Frank Hora, D Dylan Di Perna and F Darby Llewellyn.
The team can keep all four but must cut down to three in early January.