[seekah]

See, I think I would rather go with the AA solution.

What if something goes wrong with the connections from the Mod, it surely cant be as durable as the original construction.

Is it as water proof?
How long will the battery work in low light situations, will I be able to switch the batteries if need be.

The lifespan of most Eotech is well worth keeping the original set up.

If I was doing this for real, then I would just make sure I swapped in new batteries before each situation, no biggie.