I have an ACOG TA31 and the top "tube", I believe that gives me the Donut sight, has many many small hair line cracks on the top. Along with that, there appears to be small air pockets in the tube. The air pockets don't move, they seem to be in place but it sure seems odd-
I've had the ACOG for ~6 months and I don't recal the hair line cracks NOT being there. Is this normal? If not, is Trijicon OK to deal with, in-terms of getting this fixed/replaced?
Thanks for your help.