A woman was almost killed by her boyfriend when he hit his gun with a hammer and it blasted her in the stomach.
Heartless Jowayne Kesto, 21, abandoned her in the street with a stomach wound and a collapsed right lung.
Instead of calling an ambulance, he took her out into the road and she eventually managed to get to a hospital for emergency life-saving surgery.
Kesto was locked up for 10 years at an earlier hearing after admitting to grievous bodily harm and possessing a firearm, ammunition and a prohibited firearm.
The sawn-off shotgun was delivered to Kesto's mum's house in Wolverhampton, West Midlands, by a 17-year-old who later dumped it in a bush after it was fired.
The teenager, who cannot be named for legal reasons, has now been detained for three-and-a-half years, reports Birmingham Live.
Birmingham Crown Court heard how the unnamed teenager took the weapon inside a rucksack to the address in April 2021.
Kesto then hit it with a hammer and it fired, blasting his girlfriend in the chest, and hid cartridges in an airing cupboard.
While the unnamed 17-year-old dumped the gun.
The youth had previously admitted possessing a prohibited weapon and assisting an offender.
Passing sentence, Judge Simon Drew QC told him: "You became involved in a gang who effectively criminalised you and exploited you in their activities.
"You were 16 at the time of the offence and you were asked to take a bag containing the sawn-off shotgun to the home of the co-accused, Kesto, who was older than you and a much more active member of the gang.
"It is a tragedy but also an almost inevitable outcome of being involved in this sort of activity.
"You handed the gun to Kesto who started fiddling around with it. It is perfectly clear he had no idea of what he was doing.
"It was a very old firearm. Rather stupidly he asked his girlfriend to give him a hammer and he started hitting the firing mechanism with it. The firearm discharged.
"There was at least one cartridge in the weapon. It hit his girlfriend, who was caused very serious injury. He decided, rather than call an ambulance, to simply take her out in the street and abandon her.
"What you did was very serious. You took the gun out of the house and disposed of it in bushes. You clearly knew what he had done and knew she had sustained serious injuries and you were trying to cover up."
The judge said he had taken into account that the teenager was remorseful, had been experiencing emotional difficulties at the time and had changed his life since the incident.
Samantha Powis, defending, said: "There is every prospect that this young man will never trouble the courts again. Events conspired to put him in a perfect storm but that storm has passed."
She said he had been persuaded to deliver the gun and it had not been in his possession for a long time.
