New Grays manager Justin Edinburgh has allowed four players to leave Bridge Road as he continues to shake up the squad following his appointment. Former Millwall defender Ronnie Bull and former Fulham player Adam Green have left the club by mutual consent.
Meanwhile, loan players Sheku Kamara and Charlie Comyn-Platt have returned to Watford and Swindon respectively.
Edinburgh was promoted from assistant boss following the surprise resignation of previous manager Andy King.