New Cartridge Developments and Implications for Dismounted Infantry Soldiers

[LRRPF52]

Barrels don't heat up as fast with LSAT either, since the chamber is separate, and the rotating chamber doesn't heat up as fast because the polymer absorbs a lot of the combustion heat. Since there is no neck or shoulder, the new cartridge pushes the spent case out of the chamber while feeding, so feeding and extraction happen simultaneously.

There is no need for a mechanical extractor with lip, extractor spring, or extractor pin, because the new cartridge is the extractor. It's a genius design really, eliminating some of the most problematic parts of conventional metallic cartridge operating systems. You start to see why it crushes the SAW in MTBF rates.