A deactivated revolver is a real firearm that has been rendered permanently incapable of discharging any shot, bullet, or other missile. To be legal in the UK, the deactivation must be carried out by a professional and certified by one of the two (London or Birmingham). The Legal Framework: EU/UK Standards

While private sales occur, established UK militaria dealers are safer as they ensure all stock meets the latest legal specifications.

Modern deactivation involves pinning and welding the barrel, cutting the cylinder walls, and ensuring the internal firing mechanism is neutralized. How to Buy Safely