Justin Bieber Lawsuit Lil Za and Lil Twist Named In Photog Attack

12/17/2013 12:15 PM PST

Justin Bieber
's pals Lil Za and Lil Twist acted like Lil Thugs by attacking a paparazzo in Miami last June --  so claims the photog who's suing Bieber and a bodyguard.

Photog Jeffrey Binion says in his depo -- obtained by TMZ --  he was confronted by Za, Twist and 2 of Justin's bodyguards after taking pics of Justin outside of a recording studio.

Binion says Za demanded the photog's camera ... threatened to break it ... then tried to wrench it from his hand. Binion claims the struggle lasted 3 to 5 minutes.  As for Twist ... Binion says he was egging Za on.

Binion also claims one of the bodyguards threatened him with a gun.

Binion says he was strong armed into deleting the photos ... because a bodyguard had him in a choke hold.

He's now suing Bieber and that bodyguard ... claiming he's injured and mentally screwed up.

Bieber is scheduled to give his version in a deposition next month ... and he's already asked a judge to keep his testimony under wraps -- away from the public.