L110A3, also known to the entire world as FN Minimi. The A3 variant differs from its predecessors by the adjustable Savit stock and a top and side Picatinny rails. Whether it is necessary to attach a lot to them is a peculiar question indeed, since the machine gun is not a feather anyway. As the British military themselves joke: “If you are a rifleman, you have the SA80. If you are a designated marksman, you get the L129A1. But if you’re small and skinny, you probably get a machine gun because there’s nothing funnier than watching a skinny midget struggle with the heaviest weapon.”
Light machine gun L110A3 was made by Caliber Weapon Team
https://playcaliber.com/