Suspects accused of selling guns and drugs.Authorities collared 38 Bronx and upper Manhattan gangbangers Wednesday after a two-year probe into a notorious crew, officials said.The alleged members of the Dominican-based Trinitarios gang all face charges of racketeering, narcotics conspiracy and gun trafficking, authorities said.The undercover investigation — which involved officers from the NYPD, the federal Drug Enforcement Administration, the Bureau of Alcohol, Tobacco and Firearms and Homeland Security — netted about $25,000 worth of drugs and 12 firearms in Wednesday’s raid, police said.One weapon recovered, a Mac-11 machine gun, was painted...