A gripping documentary will be screened this evening, showing how antique weapons have been used for heartless killings and shootings.
BBC Panorama will unravel an underworld of vintage firearms, including the use of handcrafted bullets scattered across the streets of Birmingham.
And the city will play heavily on tonight's program, which will be on BBC One at 8:30 PM.
In one clip, undercover reporter Daniel Foggo visits an antique armory in Birmingham and buys antique revolvers "without questions".
Both pistols were Smith and Wesson revolvers who are chambered to shoot ammunition known as .44 Russian.
The rounds, which are three-and-a-half inches long, were readily available until the first half of the last century, but are now more difficult to obtain, although they can be manufactured at home.
A gun was a copy of the one used to kill Carl Campbell (33), who was shot in December 2016 during a drive-by shooting in West Bromwich.
His three murderers were jailed for a total of nearly 90 years in July last year after using a Smith and Wesson .44 Russian revolver.
Also on the program is Breaking Bad-style bullet maker Paul Edmunds, who made deadly ammunition in the garage of his house.
Bullets made by Edmunds were found by detectives on the site of more than 100 recordings, including the killing of Kenichi Phillips in Ladywood in March 2016.
Edmunds also supplied rifles and ammunition to the respected physiotherapist. Mohinder Surdhar – whom he met at a Birmingham fair in 2008 – who, in turn, sold them to crime gangs.
Firearms fanatic Edmunds was sentenced to 30 years' imprisonment last year on December 21, while Surhar, Handsworth's, was sentenced to 14 years after an investigation led by the West Midlands Police.
Elsewhere in Birmingham, the killer of 25-year-old Derek Myers also used an antique firearm to shoot him at Hockley in 2015.
It has also been shown that between April 2017 and March 2018 alone, 10 antique firearms were fired in the West Midlands battlefield. Four resulted in an injury; six of the shots damaged ownership.
The Western police and crime commissioner, David Jamieson, said: "It is vital that the government makes it much more difficult for gang members and criminals in the West Midlands and beyond to obtain antique weapons that can be turned into deadly weapons with relative ease. .
"It must ensure that outdated caliber firearms do not fall into the wrong hands.
"It has been well documented that the West Midlands has experienced an increase in firearm crime in recent years.
"We can not waste time anymore, the law has to change, life literally depends on it."
The classic weapons with BBC Panorama: Legal Weapon are exempt from legislation.
This means that firearms owners do not need a license because they are old enough to qualify as antique weapons and are designed for ammunition laboratories, which are now considered outdated.
But criminals have made their own rounds, which according to the National Ballistics Intelligence Service have been used in six murders and numerous shootings.
Detective Chief Superintendent Jo Chilton, head of the National Ballistics Intelligence Service (NABIS), told BBC Panorama: "They are easy to buy, they are not licensed if they are owned like an antiques or a curiosity.
"And we know that perpetrators quote this lacuna in the law with police officers when they are stopped and searched."
NABIS now calls for the removal of some of the antique calibres, which are currently exempt from controls, from the outdated list of Home Office.
Meanwhile, a Ministry of Home Affairs spokesperson said: "The Ministry of the Interior has consulted on proposals that will introduce a new definition of antique firearms into the law, so that older weapons that still pose a threat to the public are licensed. Be given.
"We think about the reactions and plan to introduce regulations later this year."
But collectors oppose any change in the law.
Derek Stimpson, of the British Shooting Sports Council, said: "Our concern is that if they are removed from the list, the law-abiding collectors do not have them, we lose part of the heritage – once it is gone, it has disappeared.
"And if you change or strengthen the law, it simply means that the criminal must violate more laws."