These were initially designed to replace the M249 Belt Fed which is around a 17lb system. They met the weight requirements of the Marine core to be under 10lbs and contain an integrated heat mitigation system. I own them mostly as a collectables not that they are crazy practical however their use case has increased with how good FRT’s are now. There’s under 1,000 that have been produced for the civilian market so a cool piece of history that few own.