They say Jonathan Larywon is accused of menacing his girlfriend with a shotgun Wednesday night.
Officers say they saw Larywon at his mother's home in Rye Brook Wednesday, but he refused to come out.
Police say at some point, Larrywon left the house during the standoff.
Larrywon was turned over to Ramapo police late Thursday.
He faces charges of menacing with a firearm and criminal possession of a firearm.