The Tr24 is a true 1x on the bottom end. That being said, you still can't reliably co-witness through glass. Its "doable" for short range and immediate threats/shots but I would be dumping the glass ASAP.
Offset irons are fast, but I find that having to roll the rifle is something new to learn and it doesn't work in an ambidextrous capacity. If your offsets sit on the right side its difficult to impossible to lay on your right side and shoot under cover/concealment. Its infinitely difficult to shoot from your right side from your left shoulder with offset sights.
Optical failure is a very low probability, and removing an optic can be done very quickly, especially with some mounts like a BOBRO or the Scout series from ADM with a single lever.
MM

