Mallorie Non'Elle would find the gun near her bed, with the simple point and shoot, Mallorie didn't have much use for it aside from concealing it. Being a not so well known noble, she uses this as a crutch in the business industry. She'd hire a Qadir to dismantle and study it, she'd than have the Qadir executed privately so he or she wouldn't give out word. Using the knowledge, she'd than mass produce the gun, with the material, gun powerder, and lock mechanism. By this time she accumulated over fifty weapons. She'd present this weapon to the Regalian military, and offered to make more of these and sell them to the Regalian military. Making thousands of Regals on this ranged weapon, rather magic essence used just to nullify magic, it used a few scraps if copper and gun powder. With this Regalia's crime has dropped substantially. The Regalian Military made the weapon a militaristic practice, flanking, rushing, bombarding (developing a british styled position, like in the war of independence). Few sewer criminals managed to smuggle some of these weapons, making gang wars a bloodbath, and short lived. These weapons became so well know, other countries got hold of this information and offered a trade for these weapons. Regalia denied this offer, since it would give them too much power. The refusal angered many countries, invading Regalia, the countries staying loyal helped Regalia, resulting in Aloria's first world war. Farahdeen got a hold of this information and produced their own weapons, to aid their end on the war. Elvish kingdoms remained arrogant and stuck to the old ways. The elvish kingdoms were short lived, and were forced to use this new weapons, any old tradition was blocked out, blades and bows were only sidearms (quickly an embodiment of shiroyama), other places like saivalthil went through similar processes. The huge need for metal grew substantially queer, and nobles started making mines and work "factories" to mine metal and to send to kingdoms in need of it. Regalia wouldbe quickly overthrown by opposing forces, nobles loyal were put in custody. The tech of the gun started to become tested. Gunpowder was used to explode and push the bullet, so they used this logic with water, steam, and other thongs. Thus this made an industrial age. Producing was much faster thanks to the Qadir tech and the tech they discovered.
The speed and timeline was sped up, the date was 470 A.C. And the inventor of the gun, Mallorie, perished of old age, she died a high noble of Regalia, and led the production of different weapons. The process of this medeival era was sped up drastically due to the strange weapon appearing, just near one low noble's table.
This was really fun, I was thinking what if the gun was suddenly discovered, due to the tech used in it, it would speed up the tech and go to an immediately industrial age. That's a jump between the early renaissance to late 1800s...