The investigation began in February following the arrest of another individual suspected of modifying blank-firing weapons for subsequent online sale. The inquiries led to the identification of a second person allegedly involved in acquiring firearms, deactivated weapons, and essential parts for their manipulation.

During searches conducted at a property in Colmenar Viejo and a residence in Mora, officers seized a total of eight handguns and six long guns. Additionally, a pistol and three air-compression shotguns were confiscated, along with various components for modifying or assembling weaponry, cartridges, ammunition, four bladed weapons, and an extendable baton.

The arrested individual has been handed over to judicial authorities as the alleged perpetrator of crimes related to the illegal possession, storage, and trafficking of weapons and ammunition.