AFC East blog
ESPN.com's Tim Graham writes about all things AFC East in his division blog.
• Blog network: NFL Nation
McIntyre, an unsigned free agent with three years of NFL experience, spent last season with Atlanta before his September release. He also played with Cleveland and New Orleans, and is regarded as a capable blocker and special teams player.
The moves come as the undefeated Bills (4-0) prepare to play at Arizona (2-2) on Sunday, Buffalo's final game before its bye week.
Barnes' release comes after he sprained his right foot in Buffalo's 24-23 win over Oakland on Sept. 21 and missed last weekend's game at St. Louis.
The lone fullback on the Bills' roster, Barnes is a seven-year NFL veteran who was in his first season with Buffalo. He had two catches for 34 yards this season and was used as a lead blocker for running backs Marshawn Lynch and Fred Jackson.
The Bills have reintroduced the fullback position in their offense this season under first-year coordinator Turk Schonert.
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