I'm 100% certain if you kill an ACOG, the gun is probably dead too.I didn’t mind the ACOG back when if I broke it I could go turn it in and get another one. But now that the logistical largesse of the gummint is no longer supporting me, I don’t own any fancy schmanzy rifle optics, and I have no desire to hang any of that stuff on a handgun. I’d run the batteries down regularly.
Most good micro red dots have at least a 5 year battery life. Ignoring the higher entry cost, you'll be saving money replacing a 2032 cell every 5 years than a new set of Trijicon or Ameriglo tritium night sights every 10.