So I was going to buy a CompM4 used, and then the gentleman comes back and says to me that it is a 4MOA dot. As far as I can tell, the CompM4 was only made in a 2MOA dot. I can't raise him to clarify or confirm a typo, but before I say "That's probably not an M4" can anyone tell me if there were any of these made in 4MOA?