With quality ingredients and bold flavors, were the goto stop for convenient, tasty food at an exceptional value. Ampm, 2446 s archibald ave, ontario, ca 91761, 7 photos, mon open 24 hours, tue open 24 hours, wed open 24 hours, thu open 24 hours, fri open 24 hours, sat open 24 hours, sun open 24 hours. Com › explore › united_statesampm 5020 e 4th st, ontario, ca 91764 hours, directions. However, the price of the products seems a little bit high.