The Patriots signed Brown to a two-year extension worth up to $6.6 million on Tuesday, Mike Reiss of ESPN.com reports.
The base value of the deal is worth closer to $5 million, according to Reiss. Brown has appeared in all 15 games this season and has made a pair of starts at left guard. He's the Patriots' top interior reserve offensive lineman and is now under contract through the 2027 campaign.