And for those preaching the high end stuff...
We all don't need battlefield stuff on guns that see moderate use. We don't all have pockets bulging with money. So if you can't offer something useful to answer the question, simply don't reply
So offering an alternative to buying junk ($100 or less optic) is bad advice? I think that's useful information even if it might not be what the OP can afford or want to hear. Maybe he will reconsider and save up a bit to afford a $400 optic, not exactly "high end" when compared to optics that cost 2 to 3 times as much, and doesn't necessarily require pockets bulging with money.