Jarell Paul Arnold was sentenced in U.S. District Court in Anchorage. He previously pleaded guilty to one count of credit union robbery.
Arnold was charged with the August robbery of $600 from an Alaska USA Credit Union branch.
The FBI says Arnold entered the branch and asked for the balance on his account. The teller asked for his name, account number and ID. Authorities say he complied, and then stated he had a gun and wanted money.
At the time of his arrest, he was on supervised release for a prior bank robbery conviction.

