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The present paper is devoted to a new black bounce solution that regularizethe well-known rotating black string in $3+1$ dimensions. To do so, theprocedure pointed out by Simpson-Visser is followed, which has been alreadyapplied successfully to other static cases of black strings, with and withoutelectric charge. This method implies to force a bounce on the radialcoordinate, such that a wormhole throat arises before the singularity, whichrenders a regular solution. An analysis of the metric is conducted, showing theinterpolation between a regular black hole and a wormhole, what provides a muchricher family of solutions than the original metric. Different curvaturemagnitudes are obtained in order to analyze the regularity of the solution,including the Ricci and Kretschmann scalars. Finally, by following the Einsteinfield equations the corresponding effective energy-momentum tensor is obtainedand the energy conditions are analyzed.

Regularizing Rotating Black Strings: a new black bounce solution