Re: Trijicon 42mm Reflex
This would not be my first pick for an AR optic. The concept while clever, has several issues. The biggest issue is the dot and sunlight. In many carbine classes I have been to, many Relflex users while engaging small targets at distance in bright sunlight had to put something over the light gathering window as the dot would bloom excessivley and obscure the target.
Also, when standing in a dark area and looking out into a bright area, the dot is not visible enough to be useful as it requires light to operate. Yes, it has tritium for nightime use but it is not powerful enough to use looking into a bright area from a dark area. The Trijicon ACOG's suffer from the same issue.
An Aimpoint is a better choice.