I'm in the market for an Ar-15 and have seen a lot of A3 flat tops with front sight towers and I don't like the idea of a flat top with a front sight.
So how easy it is to remove that front sight? Is it part of the gas block or can it be removed without changing gas blocks?
What about adjustable blocks, to help keep lock time right?
I'm new to the black guns so please bear with me.
Thanks
GJ
