It works great for my needs - GG&G Accucam QD Scout Rail

I am using this base to switch between electronic sights and a scoped optic for a 7.62 platform. So far at 100 yard ranges these bases have held to my current level of accuracy requirements. I needed the longer base which is why I am using the scout. It works well for a red dot and then a magnifier or NVD. By switching only the bases I can now run optics for further clearer shots and red dots for night and close shooting. I have this mounted on a platform that is very reliable and basically has 2-3" avg grouping at 100 yard so as such I have not noticed any appreciable point of impact differences but I am not going for sub MOA.