I'm thrilled with the battery release lever, which is pretty reasonably priced (and is now OEM on some new production Eotechs. The lens caps aren't watertight, but are a lot better than having naked optics.

And while I was at it, I figured I'd go with their throw-lever mount, too.
Eotech should get a clue, and provide all of this as OEM on their products. It's still the Rolls Royce of electronic sights, but this would be like getting dubs on it right from the factory.
Damn .........more $$$$ well spent enroute......:o)
That’s a most interesting product and site. Leave it to you to what is cutting edge. Thanks for heads up and the link.