Respawn on X: "With the launch of Beasts of Prey, we're further adjusting iron sights on some skins, including the Flatline skin, Heat Sink. Read on to learn about the team's approach
Apex-legends-flatline 3D models - Sketchfab
Apex Legends: All weapon buffs and nerfs in Season 2 update – patch notes - Dexerto
Pay-to-Win' Flatline Skin Returns to Apex Legends Store