why aimpoint this and that?
 

What's the difference between the comp4 and micro and what not? Why would u want a compm4 over a micro? Or vice-versa?

"...rough men stand ready in the night to visit violence on those who would do us harm." /G\

The M4 is larger and heavier than the micro. If I'm not mistaken the M4 has a longer battery life and uses a more common battery. Although the micro is very durable I believe the M4 is even more so. I'm a fan of the micro.