Moorman spent his first 12 seasons in Buffalo and holds franchise records for gross punting average (43.9), punts inside the 20 (243) and total punts (862).
The Bills released Moorman, a two-time Pro Bowler, early last season, replacing him with Shawn Powell. Moorman, 37, signed with the Dallas Cowboys and was in training camp this season with the Pittsburgh Steelers.
Powell was released Friday after one of his punts was returned by Cleveland's Travis Benjamin for a touchdown. Bills coach Doug Marrone said Powell's punts lacked sufficient hang time.