If you mean the CQ model, that's not new. You lose about 250-300fps, which isn't that big of a deal for an M82 as it's not a particularly accurate rifle to begin with. The performance at 2900 fps is obviously going to make a difference beyond 1000m compared to 2650fps, but it wasn't really designed for that. It was more about guys fighting on Haifa Street and needing something more compact.