Scotland Yard launched a new campaign today urging people to give up their guns to keep them out of the hands of criminals.
Officers have urged members of the public to hand in any unwanted firearms, such as handguns, shotguns and antique weapons to "prevent them from falling into criminal hands".
The video, part of the Met's #GiveUpYourGuns campaign, comes following a 27 per cent hike in gun crime in the UK last year - with almost 50 per cent of offences recorded by the Metropolitan Police.
Launched to coincide with a national firearms surrender campaign, the Met's video targets gun crime among young people in the capital.
The social media video tells the story of a young man who underestimates the risks of carrying a gun.
Captions throughout the video show the young man's reasons for buying the gun, such as "it's just one weapon for protection" and challenges them.
It warned that the gun could take lives and may make the carrier a potential target.
The hard-hitting clip ends by showing the consequences of carrying a weapon, as the gun appears to be used to kill another young man.
"Whatever your reasons for carrying a gun, it will never be worth the risk. Give it up," the video says.
Data from the National Office of Statistics showed over two-thirds of police forces recorded a rise in offences involving firearms from June 2016 to June 2017.
Met Police was the force with the largest increase.
This came after a 42 per cent surge in gun crime offences were reported in London from April 2016 to April 2017, in addition to a worrying rise in the number of guns being carried on London's streets.
Met Police commissioner Cressida Dick spoke of her "huge concern" about the rise in gun crime in April.
Commander Jim Stokley, of the Met’s Trident and Area Crime Command, said: “We urge members of the public who may have any unwanted guns to hand them in to police to prevent them from falling into criminal hands.
“The guns we see being used in shooting incidents in London are often converted, formerly legally-owned, firearms.
“Others are acquired and distributed by criminal networks to threaten or harm their local communities.
“We know that friends, family members and girlfriends of gang members are often asked to look after firearms to hide them from police, but saying ‘it’s not my gun’ is not a defence.
"Illegal possession of a firearm can mean five years behind bars, and if you are found guilty of possession with intent to supply, that can lead to an even longer prison sentence.
“Each firearm we retrieve helps to reduce the threat of gun crime in London.”
Commander Jane Gyford, of City of London Police, said: “The City of London Police take a zero tolerance approach to gun crime and also to those in possession of firearms even if they don’t intend to use them.
“I would encourage anyone who knows about, or owns, an illegal firearm, to surrender it at one of the designated police stations across the UK.“This can help keep dangerous weapons out of the wrong hands.”
The surrender will run for two weeks from Monday, 13 to Sunday, 26 November. Those who would like to hand in a firearm or ammunition can check the opening times of their station in advance.
The national firearms surrender is organised by the National Ballistics Intelligence Service.
If you know of anyone involved with illegal firearms call police on 101 or independent charity Crimestoppers (anonymously) on 0800 555 111.