A non-centerfire mechanical firing device designed to operate with a non-centerfire cartridge, wherein a conventional centerfire or rimfire cartridge is not able to be fired from the non-centerfire firing device.
F41A 19/15 - Ensembles modulaires de mécanismes de mise à feu
F41A 19/27 - Mécanismes de mise à feu comportant uniquement des pièces de percussion coulissantes, c.-à-d. des percuteurs le percuteur pouvant se déplacer par rapport au bloc de culasse
A non-centerfire shotgun designed to operate with a non-centerfire shotshell, wherein a conventional shotshell is not able to be fired from the non-centerfire shotgun.
A method and apparatus providing an action system for a semi-automatic shotgun including a receiver having an ejection port for expelling an empty cartridge of a fired projectile. The action system includes a bolt attached to a bolt carrier, wherein the bolt and the bolt carrier are movable within the receiver and substantially parallel to a longitudinal axis. A surface is attached to at least the bolt carrier or the receiver, and a roller is positioned rearward of the ejection port and proximate the surface, wherein a resistance is provided to rearward movement of at least the bolt or bolt carrier.
F41A 3/44 - Mécanismes à verrous semi-libres, c.-à-d. à verrous montés mobiles sur le bloc de culasse, ou sur le tube de l'arme ou la boîte de culasse munis d'éléments de verrouillage coulissants, p. ex. de billes ou de galets