Unfortunately, it is not a factory option. It's kind of a "do it yourself" thing by ordering the parts and doing a self-install. Or, if U can corral a gunsmith to do it. But, I would venture to say that most smiths have never done anything like that before
It would be cool to have. But, unless it was a factory install where U pay and they already have the parts and then install it for ya, I'm not gonna mess w/ it. The laser I have now is good enough.
I'd be tempted to get that LaserMax flat laser that is new. But it still isn't flat enough for me to put my laser and Scorpion Light all on the same side. Because it would be nice to have the inside of the gun w/ nothing attached, I notice it when its hanging by the strap and I am walking up and down the range.