A Sydney father is behind bars after shocking mobile phone footage showed his four-year-old daughter playing with a gun.

Vision revealed the man encouraging the young girl to shoot the weapon, using the dangerous pistol as a toy.

The gun is a .45 calibre pistol, and the dad filmed as she waved it around and pretended to shoot him.

“Go, go… Aah!,” the dad said in the footage.

A Sydney father is behind bars for letting his daughter play with his gun. (9NEWS)

The 33-year-old also posed for a number of photos. (9NEWS)

“C’mon, you know what to do,” he can be heard saying.

The 33-year-old man then points the pistol at his child and pretends to shoot her. It’s a disturbing game that is repeated a number of times.

The Revesby man's been jailed for the videos and number of photos, where he poses with a range of illegal guns.

“As a result he's now spent, will spend a year and nine months away from his daughter. He accepts that that was the wrong approach as a father and he shouldn’t be teaching her those type of things,” his lawyer Ahmed Dib told 9NEWS.

“He was at friends houses and he made a foolish an extremely foolish decision to take photos almost in a bravado sort of stance and thought at that stage it was cool.”

The man's lawyer said he was remorseful. (9NEWS)

The man was later seen pointing the gun at his four-year-old girl. (9NEWS)

The photos and videos were uncovered by police after the father was pulled over for a random breath test in July last year.

He was driving disqualified and had a fake ID in his possession, so he was arrested and his phone and the car were searched.

The father sentenced to two years and eight months behind bars, but will be eligible for parole in March.

“He demonstrated to the courts how sincere in terms of his apology was, his remorse, and he realises how silly the mistake was he made,” Mr Dib said.

Gun control advocates have criticised the Revesby father's actions.

“People think guns are unloaded but often they're not,” Charles Watson from Gun Control Australia told 9NEWS.