#6. Eotech or Aimpoint M/ML3. Eotech has better field of view for CQB work, but the battery life isn’t great. I’d get a model that uses AA or CR123/Surefire batteries. Aimpoint has outstanding battery life, but a slightly reduced field of view for CQB work. Both are good to go. Your choice.
I would go with an Aimpoint. If you read up on EoTechs, some models have a tendency for the battery connections to come lose, making the optic useless when you would need it most.
As for field of view, it may have a larger holographic/glass area, but its also clouded with a larger target than just the simple red dot of an Aimpoint. It may be just me, but shooting with both eyes open, using an Aimpoint, I don’t notice that it lacks ‘field of view’ as all I really focus on is the dot, maybe it’s me.
The whole ‘tube effect’ concept or better field of view doesn’t make sense to me.