CCTV reveals Gold Coast bikie Shane Bowden was shot dead in seconds

CCTV has been released showing it took just seconds for two people to shoot dead Gold Coast bikie Shane Bowden in the garage of his Pimpama home.

The footage shows Bowden driving a black BMW into the garage of a unit before two people, one carrying a long firearm, run in behind the car just after midnight on October 12 last year.

Seconds later, the pair are seen fleeing the garage.

READ MORE: Queensland's lockdown hangs on tomorrow's COVID-19 cases

Police allege the two gunmen fired 21 rounds from a machine pistol and shotgun before running back to a waiting silver Commodore being driven by a third person.

Police are asking anyone who knows the identity of the two suspects depicted on the CCTV to come forward.

A $250,000 reward has been offered for information that leads to the conviction of the person, or persons, found to be responsible for the murder.

Indemnity of prosecution could be available for any accomplice who comes forward and didn't commit the crime.

Last week, police released CCTV from three weeks before the murder showing two people placing a GPS tracking device on Bowden's car.

The device was later found by forensic investigators.

Police allege those responsible spent days "conducting physical and technical" surveillance on Bowden's car and home and drove past his address multiple times.

Police are urging anyone with information on the murder or who recognises the people in the footage or the vehicles to immediately contact Crime Stoppers on 1800 333 000 or Police Link on 131 444.