semiautomáticos

Semiautomáticos refers to firearms that, after firing a single round, automatically cycle the next round into the chamber. This means the user only needs to pull the trigger for each shot, rather than manually operating a bolt or lever for every new cartridge. This action is accomplished by harnessing the energy released from the firing of the previous shot, often through gas pressure or recoil.

The mechanism typically involves a bolt carrier group that moves rearward upon firing, extracting and ejecting the spent casing. Simultaneously, a spring-loaded mechanism pushes the bolt carrier group forward, stripping a fresh cartridge from the magazine and chambering it. Once the bolt is locked, the firearm is ready to fire again. This contrasts with fully automatic firearms, which continue to fire as long as the trigger is held down, and manual action firearms, which require a distinct action by the user for each shot.

Semiautomatic designs are common in various types of firearms, including pistols, rifles, and shotguns, offering a balance between rate of fire and ammunition management compared to other action types. Their widespread use in both military and civilian contexts is due to their efficiency and ease of operation.