I saw another scope I will consider when I get to the point of buying a FX. Vortex Diamondback Tactical 6-24. FFP, side focus, MOA or mil rad and $399. Cyclops, who is not a Vortex fan in general, even likes the similar model (didn't review this one exactly). 50mm objective. Seems quite similar to Element Helix but from a bigger manufacturer of scopes and for less money.