Gregson enjoyed a number of loan spells away from the National League side over the last two seasons, featuring for Bamber Bridge, Redditch, Bromsgrove Sporting and Prescot Cables.
He left Fylde at the end of the 2022/23 campaign and has already appeared for Colls as a trialist in their recent pre-season friendlies against Blackpool and Prestwich Heys.
Discussing his new signing, manager David Chadwick said: “Harvey has impressed us from his first training session.
"His engine, work-rate and composure on the ball will be vital in our midfield this season."
Photo credit: Atherton Collieries
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