This component is the crucial link between the action and the pump-action mechanism of a specific shotgun model. It houses the action bars and provides the necessary support for the forend, allowing the user to cycle rounds and prepare the firearm for firing. This system is typically composed of a metal tube, a spring, and related hardware.
A properly functioning system of this type is essential for reliable operation and smooth cycling. Its design contributes to the shotgun’s balance and handling, directly affecting the user’s ability to quickly and efficiently operate the firearm. Over time, various designs and materials have been employed to enhance durability and performance. These advancements reflect the ongoing refinement of firearm technology, particularly in pump-action shotguns.