Glock 19/46 mos + holosun 508t - Ameriglo Tritium Front Rear Tall Suppressor Set

These sights are really considered proper lower cowitness with some aftermarket slide cuts made by third parties (that are deeper cut than factory). With the factory MOS Glock pistols, it is BARELY visible. With the iron sights lined up properly I have just the bottom part of the front sight's colored ring occluded by the optic; maybe 5 o'clock to 7 o'clock. I would call this noticeably BELOW a "lower third co-witness"; I'd call it "minimal cowitness". Personally I find it perfect; the ironsights are backup after all. Note that this is with a Holosun 508t; another optic may vary.
The night sights are passably bright; about the same a Trijicons but not like TruGlo TFX Pro sights.