An ammunition retaining feed tray for a firearm including a feed tray with a distal and a proximal end, a cartridge stop for alignment of an ammunition belt, at least one pawl opening, and a pawl assembly engagement; a pawl assembly connected to the pawl assembly engagement of the feed tray with the pawl assembly including at least one pawl operable to move within the at least one pawl opening of the feed tray and for engaging an ammunition belt.

An ammunition retaining feed tray for a firearm including a feed tray with a distal and a proximal end, a cartridge stop for alignment of an ammunition belt, at least one pawl opening, and a pawl assembly engagement; a pawl assembly connected to the pawl assembly engagement of the feed tray with the pawl assembly including at least one pawl operable to move within the at least one pawl opening of the feed tray and for engaging an ammunition belt.

A recoil assembly for a rifle includes a barrel assembly, a bolt, bolt actuator, and a buffer assembly. The barrel assembly includes a barrel secured to a barrel extension. The barrel assembly is configured to be movably received through the fore end of the upper receiver and to move axially relative to the upper receiver when the rifle is fired. The barrel extension is coupled to a hydraulic buffer assembly located below the barrel extension and counteracts recoil forces acting on the barrel extension when the rifle is fired. An op-rod spring is coupled to an op rod extending from a gas piston assembly on the barrel. The op-rod spring counteracts recoil forces acting the bolt actuator when the rifle is fired.

An ammunition supply system includes a weapon mounted on an exterior of a fighting vehicle; a magazine loading unit mounted on the exterior of the fighting vehicle and configured to load a magazine for the weapon; a hatch unit configured to form an entrance to allow a combatant to enter and exit the fighting vehicle; and a hatch lifting unit configured to supply power to the hatch unit to move in a vertical direction with respect to the fighting vehicle. The hatch unit includes: a hatch door unit through which the combatant enters and exits the fighting vehicle, and a hatch passage part forming a passage for connecting the hatch door unit and an interior of the fighting vehicle. The hatch passage part includes a first opening facing the magazine loading unit so that the magazine is transferred from the interior of the fighting vehicle to the magazine loading unit without the combatant being exposed to the exterior of the fighting vehicle.

An ammunition supply system includes a weapon mounted on an exterior of a fighting vehicle; a magazine loading unit mounted on the exterior of the fighting vehicle and configured to load a magazine for the weapon; a hatch unit configured to form an entrance to allow a combatant to enter and exit the fighting vehicle; and a hatch lifting unit configured to supply power to the hatch unit to move in a vertical direction with respect to the fighting vehicle. The hatch unit includes: a hatch door unit through which the combatant enters and exits the fighting vehicle, and a hatch passage part forming a passage for connecting the hatch door unit and an interior of the fighting vehicle. The hatch passage part includes a first opening facing the magazine loading unit so that the magazine is transferred from the interior of the fighting vehicle to the magazine loading unit without the combatant being exposed to the exterior of the fighting vehicle.

System and computer-based method for automatically distributing information upon the occurrence of predefined events is provided. In a preferred embodiment, the system includes a tool that provides an intuitive interface that allows users to easily create content to be stored and delivered. In a preferred embodiment, the system provides an effective information delivery system that leverages social networking.

System and computer-based method for automatically distributing information upon the occurrence of predefined events is provided. In a preferred embodiment, the system includes a tool that provides an intuitive interface that allows users to easily create content to be stored and delivered. In a preferred embodiment, the system provides an effective information delivery system that leverages social networking.

Embodiments of the present disclosure provide modifications to the AR platform operating system such that the platform now is competent to fire large caliber cartridges, including belted cartridges, providing longer range and greater barrier penetration without substantially altering the characteristic features and component inter-relationships of this platform.

Embodiments of the present disclosure provide modifications to the AR platform operating system such that the platform now is competent to fire large caliber cartridges, including belted cartridges, providing longer range and greater barrier penetration without substantially altering the characteristic features and component inter-relationships of this platform.

System and computer-based method for automatically distributing information upon the occurrence of predefined events is provided. In a preferred embodiment, the system includes a tool that provides an intuitive interface that allows users to easily create content to be stored and delivered. In a preferred embodiment, the system provides an effective information delivery system that leverages social networking.