Recoil operated systems are a type of firearm mechanism that uses the energy generated from the recoil of the gun when it is fired. When the bullet exits the barrel, the backward force pushes the entire action backward, allowing the firearm to cycle and prepare for the next shot. This process helps to eject the spent cartridge and chamber a new round. This mechanism is commonly found in various firearms, including handguns and rifles. Recoil operation is efficient and can lead to faster follow-up shots, making it a popular choice for many shooters. However, it may also result in increased felt recoil for the user.