Jun 23, 2026
A smart piston for a countermeasure expendable. The smart piston may include a main body, a gasket that operably engages with the main body, and an electronic system that is carried by the main body. Upon assembly, the electronic system of the smart piston is positioned between the main body and the gasket. The electronic system of the smart piston is configured to provide electrical communication to a payload of countermeasure expendable by passing the electrical communication through the main body to the payload of the countermeasure expendable where the electronic system and the payload are spaced apart from one another.
Mar 10, 2026
A handguard exhaust structure of a firearm includes: a barrel, a piston mechanism parallelly arranged with the barrel in a length direction and a positioning end, a sleeve extended from the positioning end, and a piston member actuating within the sleeve, two exhaust holes are respectively disposed at two sides of the sleeve and arranged to be adjacent to the positioning end; and a handguard allowing the barrel and the piston mechanism to be disposed therein, two divergent stoppers are respectively disposed on the handguard at locations corresponding to the two exhaust holes, each of the divergent stoppers is formed along a length direction of the handguard, a lower diverter hole and an upper diverter hole penetrating the handguard are disposed at two sides of each of the divergent stoppers. Accordingly, effects of lowering the temperature and prevent hands from being burnt are achieved.
