Guys , if you don't have backup iron sights with your RDS let me know why and what you're thoughts are.
Not trying to skew your mission here, but really... you need to understand why BUIS are considered an important component on an RDS-equipped gun you will use for
defense.
As Tom givens says: it's not the
odds - it's the
stakes.
For a range/competition gun, honestly... who cares? Set it up however you want! There are no fatal consequences if the optic fails... just a less-than-stellar range session or score in competition.
With a gun you may need to
defend your life with, though, that changes...
dramatically.
If this is to be your carry gun, I
strongly urge you to rethink going without cowitness (or at
least 1/3 cowitness) irons... especially with an optic less proven, durability-wise, like the Vortex.
Seriously, man... I'm not trying to rain on your parade. It is just that there is a reason BUIS are so highly recommended on a self-defense gun, you know?
A failure that puts you in a position where you cannot effectively defend yourself should NOT be a choice for serious consideration.