Bass signed a four-year extension worth up to $21 million Thursday, Peter Schrager of FoxSports.com reports.

Bass has spent the first three years of his professional career in Buffalo. He has emerged as one of the league's most accurate kickers in that span, making 88 and 87 percent of his kicks in the last two seasons, respectively. Under the terms of his extension, which keeps with the Bills through the 2027 season, the 26-year-old has been rewarded with at least $12.3 million in guaranteed money.