And the M4's standard is 4 MOA with M855, but I've seen many be able to shoot 1.5 MOA with M855. Sometimes claims and stats are on the conservative side of things. I'm willing to bet that most 16" Tavors will be able to shoot at least 2 MOA with mass produced decent ammo.
Thats about what I figured as well. The same was said about the RFB but I've done better then Internet speculation of 3-4 moa.