Former O's striker Shaun Batt has joined fellow League Two side Barnet on a two-year deal.
During his time with Orient, the 28-year-old played 77 times for the club, and scored 13 goals.
He joins another former O's forward at The Hive in the shape of Kevin Lisbie, who also made a summer switch to Martin Allen's side.
And the duo will be making a quick return to the Matchroom Stadium, with Orient hosting the Bees on August 8 - the Sky Bet 2015-16 season opener.
The Club would like to thank Shaun for his service during his time with the O's and wish him all the best for the future.