Officers conducted a "significant" search on Wednesday afternoon but were unable to find the weapon. Police would not disclose the circumstances in which the weapon was stolen but internally, it is regarded as a significant incident and will be part of a major incident brief provided to the Commissioner, Reece Kershaw, and all the senior AFP executive team.

The officer who had the weapon stolen is a AFP federal agent, not an ACT Policing officer.

Police would not disclose what other items of equipment were on the accoutrement belt but generally most officers carry 14 rounds of hollow point ammunition in their pistol, including one in the chamber. They also carry a spare clip of ammunition which holds a further 14 rounds.

Polcie would not disclose whether the belt also held, as is standard practice among most sworn officers, a small can of capsicum spray and a set of handcuffs.

The AFP's Professional Standards is conducting an internal investigation in relation to the incident.

The Glock is a lightweight pistol issued to all sworn AFP members and comes in several handgrip sizes with Close Personal Protection officers who protect the Prime Minister and dignitaries issued with a Glock 26, which is a compact, sub-nosed pistol designed to be concealed in an inner holster under a jacket.

All Glocks are designed to be so easy to use that, as one police officer described it: "a child could use it".

The hollow point standard ammunition issued to all officers is also designed to cause maximum injury by "tumbling" and spreading on impact.

Some AFP members, such as the CPP officers, have a safe inside their vehicle which is designed to secure their weapon and accoutrements when leaving their vehicle.

Police are seeking the public's help to find the stolen weapon, AFP duty belt and other equipment.

"ACT Policing officers continue to follow several lines of inquiry, and encourage anyone who may have information about the location of the stolen property to contact police," police said in a statement.

They are also looking for dash-cam footage taken in Fraser between 5am and midday.

They asked anyone with knowledge of the stolen property to contact Crime Stoppers on 1800 333 000, or via the Crime Stoppers ACT website and quote reference 6639596. Information can be provided anonymously