I'm in the process of building and owning my first Flat-Top AR. (Owned A2 style) I'm looking for a good rear sight for the money. It doesn't matter if it's flip up or solid. The sight will be the primary sight, but in the future I may add a scope/Holo setup. But for now it will be my main sight. I don't plan to go into battle with this rifle, 99.999% of the time will be spent plinking ect. But I don't want to have to rezero it every outing either. I wouldn't mind a carry handle, but the the huge unsightly mounting knobs are not looking to appealing. Plus, If I want a handle I would have just got an A2. I'm looking at a budget of $75. I know, You get what you pay for... But this is a "budget build" AR. I'm looking at the Magpul MBUS Gen2, but it look a bit flimsy for a primary sight. Also seeing the Troy Fixed rear battle sight. Any thoughts?