Dallas Cowboys RB -- ARRESTED FOR WEED ... Baby Mama Claims He Had Gun

9:14 AM PT -- Cops tell TMZ Sports ... the woman who initially called police claimed Randle had a gun in the hotel room and was "being out of control."

However, when cops got to the scene ... we're told no gun was found.

As for the woman, we're told she did not have any injuries -- and Randle was not arrested for any kind of assault.

Dallas Cowboys running back Joseph Randle was arrested in Kansas Wednesday morning ... after cops say the 23-year-old had weed in his hotel room.

FYI -- Randle is the same guy who was busted for stealing underwear and cologne from a Dallas department store a few months ago.

According to law enforcement, cops were called to a hotel in Wichita after the mother of Randle's child called police around 3AM to report a domestic incident between them.

When cops arrived, they found weed -- and popped Randle for misdemeanor marijuana possession.

Story developing ...