The 19-year-old is a graduate of the efficacious Highbury youth system and is being allowed to leave to gain some valuable first team experience.
Chorley is the latest youngster to be allowed to leave on loan, as nearly half-a-dozen of Arsenal's youth set-up have all left on temporary deals this summer.
Chorley, who signed a professional contract at Arsenal last season, was part of the Gunners side that won last year's FA Youth side.
