Timmy Dee Perrin was convicted of conspiracy to possess with intent to distribute 50 grams or more of actual methamphetamine, possession with intent to distribute 50 grams or more of actual methamphetamine, and possession of firearms in furtherance of the aforementioned drug trafficking crimes. He was sentenced to a total of 180 months of imprisonment and five years of supervised release.

Perrin argues that the evidence was insufficient to sustain his convictions because no rational trier of fact could have credited the testimonies of his codefendants. Their testimonies were not incredible as a matter of law. See United States v. Osum, 943 F.2d 1394, 1405 (5th Cir. 1991). Accordingly, this claim of error is unavailing. See United States v. Zamora, 661 F.3d 200, 209 (5th Cir. 2011).

Next, Perrin argues that the district court erred in admitting under Federal Rule of Evidence 404(b) evidence of his prior arrest. This evidence was not admissible under Rule 404(b) because the Government presented no evidence that Perrin committed the prior bad act. See United States v. Gonzalez-Lira, 936 F.2d 184, 189-90 (5th Cir. 1991). We need not decide whether the district court plainly erred in admitting this evidence because any error did not affect Perrin’s substantial rights. There is not a reasonable probability of a different outcome in this case given the codefendants’ inculpatory testimonies against Perrin and other circumstantial evidence of Perrin’s guilt. See United States v. Cervantes, 706 F.3d 603, 616 (5th Cir. 2013).

*200 The judgment of the district court is AFFIRMED.