am looking to outfit 2 of my flattop AR's with back up iron sights, and am wondering if Bushmaster's flip up A2 rear and front sights are any good.  the rear is a bit less than an ARMS 40, but i'd rather not "save" the money if the product is not as good.  
by the way, one of my rifles has a milled front sight base, the other is a dovetail gas block...what front sights do you recommend (the fronts don't necessarily have to be flip sights if they don't interfere with my EOtech...)
thanks

I'd recommend stay with the #40 rear, and the PRI front sight.
Good Shootin, Jack