The robbery happened Friday night at Richie's Barbershop on Olympia Boulevard.
Investigators say the suspect pistol-whipped a 27-year-old man numerous times and stole 300 dollars in cash and expensive jewelry.
Emergency workers rushed the victim to the hospital. Doctors used 20 staples to close a gash on his head.
The suspect is described as a black or dark-skinned male between 25-35 years old with a slim build. He was last seen wearing a blue-colored jacket dark-colored pants and Nike sneakers.
----------
* More Staten Island news
* Send us a news tip
* Download the abc7NY app for breaking news alerts