New report claims that Mel Gibson pulled a handgun on his baby mama during their violent Jan. 6 confrontation

Mel Gibson is nuts. The latest in camp crazy-town: Mel allegedly pulled a handgun on former flame Oksana Grigorieva during their now-epic Jan. 6 domestic dispute!

Not only did the 54-year-old Australian wave a gun – which he keeps in his bedroom – in his baby mama’s face, but he reportedly told her, “I will show you how to get out of here fast,” a source tells RadarOnline.

This is how the drama unfolded: “Oksana claims that after Mel hit her, she escaped outside and ran barefooted to the outdoor area at the home, near the pool,” said the source. “When Mel disappeared, Oksana said she ran back inside to find her car keys so she could leave the house. That’s when Mel reemerged holding the gun and began waving it in front of Oksana’s face. Oksana said she was panicked and while searching for the keys, Mel came up to her and said, ‘I will show you how to get out of here fast,’ which she interpreted to be a death threat. Oksana then grabbed [8-month-old daughter] Lucia, fled to her car and escaped Mel’s compound.”

So scary!

We would have been terrified – and it’s no wonder Oksana filed a restraining order against her BF of three years. Mel is currently under investigation by the Los Angeles County Sherriff’s department on domestic violence charges for threatening to kill, punching and allegedly raping the 40-year-old Russian pianist.

Source: www.radaronline.com