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Nikon's glass quality is well respected. I have had their Lenses and binoculars, and one of the older models of Nikon scopes.....they field tested well, no issues here.
( I am a Canon guy, so for me to admit that the glass is good, well, that just hurts me.)
I have the Nikon monarch X 2.5-10x44mm tactical 30mm tube, with 1/4 click MOA on one of my Springfield M1A national match rifles...LOVE IT, very clear! very nice glass! and very good value. It out performs some of the top tactical scope brands on the market today. I must said.