 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.He finished the season playing for both Blackfield & Langley and Gosport Borough, making a further three appearances, scoring once for Gosport, to help them avoid relegation from the Southern League Premier Division.