24 year old attacking right back who started his career with Bolton Wanderers.
Riley joined Bolton as a 7 year old and rose through the youth ranks before making his league debut in a 5-0 win against Stoke City in the Premier League.
Riley found chances hard to come by at Bolton and joined Oxford United on loan in the 2014/15 season.
Following his release from Bolton at the end of the season, Riley joined Bury.
He will already be well known to Town fans after he scored a screamer against Shrewsbury as both sides gained promotion to League One.
A regular for Bury last season, Riley joins Town for an undisclosed fee on a two year deal.