Arming sets for weapons system

A weapons system comprising:

• a plurality of central units each comprising a single-barrel automatic weapon, a respective munitions loader for loading individual rounds of munitions into a chamber of the respective weapon, a respective breech block closable for firing of the round in the chamber, said rounds each comprising a PRUNIT consisting of a projectile and a solid body of propellant affixed to said projectile and ignitable to propel the projectile through the barrel, and a respective arming set for at least some of said weapons, each arming set comprising means defining first and second energy-flow paths including respective shafts adapted to transmit torque from input ends to output ends of the path, at least one of the shafts being connected operatively to said breech block for shifting same between open and closed positions, at least one of the shafts of each energy-flow path being operatively connected to said loader of at least one weapon associated with the arming set, each arming set including an energy converter for transforming energy from an energy source into a torque of at least one of the shafts thereof, the respective weapons being combined with respective arming sets and energy converters in accordance with the respective operating characteristics of the weapon in terms of the nature of the energy applied to operate same;
• a recoil/counterrecoil mechanism associated with at least some of said weapons;
• and
• a respective munitions feeder for feeding PRUNITS to each of said loaders, at least some of said munitions feeders being provided with two munitions magazines each receiving PRUNITS of different type and a selector for advancing a PRUNIT of a selected type from one of the magazines to the respective loader.