Dramatic CCTV has emerged of the abduction of a western Sydney man who was freed after more than 48 hours last night.

Officers were contacted after 39-year-old Omar Elomar was taken from his home in Condell Park just before 7.30pm on Sunday.

Mr Elomar presented to Bankstown Hospital last night, suffering a black eye and broken ribs.

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New CCTV obtained by 9News shows a group of men arriving at Mr Elomar's home on Sunday night in a stolen Mercedes SUV.

The men, brandishing a handgun, can be seen assaulting Mr Elomar before dragging him into the car.

Just before 1.30am on Monday a luxury SUV, believed to be the one used in the kidnapping, was set alight at a carpark on Lawford Street in Greenacre.

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Police are investigating several theories as to why Mr Elomar was kidnapped, including whether he was an innocent bystander in a $400 million cocaine heist.

Officers are also investigating whether a $3 million ransom was paid for his release.

Mr Elomar arrived back at his Condell Park home this morning where he is surrounded by his family.