Conor McGregor Fined $150k For UFC 202 Melee

Conor McGregor was just hit with a $150k FINE and 50 hours of community service for firing water bottles at Nate Diaz during the UFC 202 press conference.

UFC honcho Dana White joined "TMZ Sports" the day after all hell broke loose at the presser and said "they're both getting punished."

Today was the day ... 'cause the Nevada State Athletic Commission met this morning in Las Vegas to determine what punishment McGregor would face.

The outcome? Conor has to pay a $150,000 fine (5% of his UFC 202 purse) ... and do 50 hours of community service. He also agreed to participate in an anti-bullying PSA.

Nate Diaz -- who also faces punishment -- had his hearing postponed.

Stay tuned ...