Antonio Brown's tenure as the owner of the National Arena League's Albany Empire was apparently much worse than previously imagined ... with two former players claiming the former NFL superstar threatened to pull a gun on them in a heated exchange.
Dwayne Hollis and Darius Prince detailed the confrontation in an interview with ESPN ... saying the whole incident was sparked by a social media tribute to former teammate Mo Ruffins, who died last year.
The post was quickly deleted from the Empire's account without explanation .