The EOTech is basically the combat version with an extra metal hood for
protection and better sealing of the switch mechanism. Otherwise, the same
units. _________________ Thanks for posting with us
Joanie K - Your personal optics expert
I had the "commercial" bushnell version for about six months. It got knocked around a little bit and would no longer hold zero. I sent it in for warranty work and then sold that version and picked up an EOTech 512. That hood adds alot of durability to the unit. I think it is well worth the few extra dollars.