Without ear pro, you''ll likely be deaf (for some time) when discharging a standard AR in a residence.
"Good evening Mr Bad Guy, would you excuse me for a second while I put my ear muffs on before I blow your sorry ass away" 🤣🤣🤣
Mine hangs from the pistol grip. Maybe I'll have time to get it on, maybe I won't. Nice to have it handy.
Realistically, I expect most home defense scenario's to be "come as you are" parties, and fought with what's on my person or within reach.