Ok so I was checking out their website and I got interested in their complete upper, the varmint version. The only thing I'm hesitant about is the chamber specs seem to be WOA varmint chamber. All their other barrels are either Wylde or "chambered for excellent performance from..."

So my question is does anyone know if their "exclusive WOA varmint chamber" is ok to use 5.56 or not?