Quote Originally Posted by BaronFitz View Post
In the end, I went back to the factory sights, since rail mounted ones further increase the already considerable mechanical offset the SCAR has at close range.
Sorry, but no they don't.

The SCAR factory folding rear sight is the same height as any standard AR rear sight. The height above the rail is the same with the factory sights or by removing the factory sights and installing AR flip ups on the top rail.

This is also confirmed by various cowitness mounts. The Larue LT660 is a lower 1/3 cowitness on an M4, and is the same on the SCAR. The Larue LT751 is an absolute cowitness on an M4, and is the same on the SCAR.

The factory front sight post is very tall, because is starts lower than the top rail. When measuring from the top rail to the tip of the front sight, the factory sight is the same as a set of mounted traditional M4 sights.