 He made his fourth debut a day later in a 2–0 defeat at home to Tranmere Rovers.On 11 January 2018, McAllister signed for Southern League Premier Division club Gosport Borough as player-coach, after leaving Eastleigh by mutual consent.After scoring four goals from 10 appearances for Gosport, McAllister signed for Blackfield & Langley of the Wessex League Premier Division, scoring twice on his debut on 10 March in a 3–0 home win over AFC Portchester.