A member of the Comancheros and four other men have been arrested in connection with the death of a man who was shot multiple times outside a home in Sydney's west.

Emergency services were called to Meridian Place at Doonside about 7.30pm on Monday after reports of a shooting.

NSW Ambulance paramedics treated Craig Anderson, 51, who had suffered several gunshot wounds, but he died at the scene.

Investigators say that Mr Anderson, who was known to police, had been in a dispute with one of the men over something trivial.