Westchester County Executive Rob Astorino formally announced his running mate on Tuesday afternoon, selecting Chemung County Sheriff Christopher Moss.

In picking Moss, Astorino is selecting an upstate resident, a black Republican and a staunch opponent of the gun control law known as the SAFE Act.

Astorino made the announcement in a video released online.

“Those of you who don’t yet know Chemung County Sheriff Chris Moss are in for a treat, because Sheriff Moss is among the best and brightest this state has to offer,” Astorino says in the video.

“Sheriff Moss has hands-on executive experience, overseeing a team of deputy sheriffs and a full corrections department. But what Sheriff Moss most brings is a reformer’s passion in a state in desperate need of reform — ethically, educationally, and economically.”

Astorino will be formally nominated at the state party convention on Thursday in Rye Brook.

NYS Sheriff’s Association President Chris Moss Chosen as Astorino Running Mate from Rob Astorino on Vimeo.