Bought this back in 9/2011 and mounted on SIG556 rails
Samson Flip ups front and rear BUIS for co-witnessing:- just visible on the bottom margin of the Eotech (since EXPS is a bit (1/4?) higher than XPS). Hope BUIS makers adjust to EXPS soon. But still useable as it is.
I chose EXPS with the side buttons so that the magnifier and the BUIS do not interfere with my access to the buttons.
The flip up BUIS from Samson folds neatly below the G23 Magnifier, so it doesnt really take up rail space.
Topmost dot zeroed at 100 yds, and stayed zeroed with any type of ammo I tried so far. (SIG 556 eats anything including Wolf). Very happy with this Eotech sight so far.
The front of the magnifier tube has been dinged from the ejected casings a few times, so I might have to change the magnifier to a left flip. Its doesnt bother me although I am a right handed shooter.
Although it is very well made, G23 x3 magnifier is not powerful enough (at least for my old eyes). I wish Eotech would make at least x 7 magnifier. Currently I have had to buy another (cheaper) type of x 7. Dont know how long that will last.
Four Dots appears as a line without the magnifier at 100 yards (for those of us without great eyesight). I dont find that objectionable because it doesnt really affect my aim. With x 3, x 5, x 7 magnifiers, the four dots are very clear.
The knurled battery cover is a real menace to my index finger knuckle on a SIG556. (got to get around to finding an aftermarket charging handle ...
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