Police say they have charged a senior member of the Hells Angels bikie gang over the discovery of two illegal drug laboratories earlier this week. The 33-year-old man was arrested with an alleged Hells Angels associate on Wednesday afternoon at an apartment block at North Ryde, in Sydney's north-west. Police say they found drugs and a loaded handgun at the unit. The apartment was raided by officers investigating the discovery of two methylamphetamine labs on Tuesday in the city's south-west at Catherine Field and Narellan. Specialists from the Drug Squad's Chemical Operations Team are still working to dismantle the equipment and chemicals used in the manufacture of ice. Both men arrested yesterday have been charged with drug manufacture and other drug offences, while one has been charged over the pistol. Two other men who were arrested at the lab sites on Tuesday, aged 36 and 41, remain before the courts.