Reed (forearm) was reinstated from the 10-day injured list Tuesday, Anthony DiComo of MLB.com reports.
Reed landed on the 10-day injured list Aug. 20, but he'll rejoin the Mets' bullpen after missing just under a month. The 28-year-old has made two relief appearances since he was claimed off waivers by the Mets in early August, and he struck out five in four scoreless innings during that time.