(KRON) -- A "known narcotics trafficker" in San Francisco's Bayview neighborhood was arrested Tuesday at his Hayward home following a months-long investigation as officers seized a huge quantity of drugs, illegal firearms and more than $115,000 in cash, said police.

"SFPD seized 476 grams of MDMA, 294 grams of psilocybin mushrooms, 74 hydrocodone pills, 5 grams of diazepam pills, 17 grams of oxycodone, 100 grams of codeine promethazine, 24 bottles of promethazine and marijuana," said San Francisco police in a news release. "Officers also seized $115,428 in US currency, a semi-automatic rifle and pistol and ammunition. Promethazine are opioids that are often used to make the street drug 'lean' or 'sizzurp.'"

MDMA is more commonly known as "ecstasy" and "molly.' • Photo courtesy of SFPD.

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