It looks like they make a clone of the Bushnell FastFire II (hell, for all I know, they make it for Bushnell) at about half the cost:
Mini Shot Reflex Sight
I'm tempted to drop $100 on one just to see, but I'd like some feedback from the Group Mind if there is any.
I´m disappointed with mine. It would shut off the red dot during recoil in my 16¨ dedicated 22LR upper.
That kind of mitigates against using it on a S&W 327, then.