So I'm new to the AR world and like any good Type A/ADHD individual I'm looking, learning and reading, finding sources like this one and others to immensely helpful.
Since I have put a scope on my AR (A3 upper) I figure I don't have the need for the front A2 type sight. It doesn't impede the vision through the Scope even at 4 power but at some point I would like to remove it and put a different type gas block on the weapon.
With that in mind I would also like a set of quality back up sights.
I see many that are mounted to the rail on the hand guard.
This doesn't seem like a stable place to mount the sight as it can move relative to the barrel.
If I'm shooting offhand the hand guard will have a different "load" on it than if I'm shooting from a guard mounted bipod or sand bags.
It seems that a gas block mounted front sight is going to be more "true" than the hand guard mounted versions.
Of course that brings up a clamped vs. pinned gas block, but that's another thread.
Am I over thinking this?