Abstract: Firefighting gas releasing apparatuses may include a trigger housing. A containment shell having a plurality of interfaceable shell sections may be carried by the trigger housing. The shell sections may be positional in a closed shell configuration and an open shell configuration. A shell interior may be formed by the shell sections in the closed shell configuration of the containment shell. The shell interior may be configured to contain a supply of at least one fire-suppressing gas. A plurality of shell retention members may removably engage the shell sections. A shell retention strap may releasably engage the shell retention members. The shell retention strap and the shell retention members may retain the shell sections in the closed shell configuration of the containment shell. A retainer piston may be disposed in the trigger housing.

Abstract: Firefighting gas releasing apparatuses may include a trigger housing. A containment shell may have a plurality of shell sections pivotally carried by the trigger housing. The plurality of shell sections may be positional in a closed shell configuration and an open shell configuration. A shell interior may be formed by the containment shell in the closed shell configuration. The shell interior may be configured to contain a supply of at least one fire-suppressing gas. A selectively-actuatable shell releasing assembly may be carried by the trigger housing. The shell releasing assembly may be configured to engage the plurality of shell sections and maintain the containment shell in the closed shell configuration and disengage the plurality of shell sections for deployment of the containment shell to the open shell configuration. Firefighting gas releasing methods are also disclosed.