A buddy bought one of those under a different brand name and it lasted all of three shots on his AR. I doubt it would hold up real well to the recoil of a .44.
I personally have a Burris Fastfire 3 on my .44 and while it still works the power button has some issues where it skips a brightness or simply turns off rather than going to the next one. It worked perfectly when I got it and the one on my AR is the same age and does not have the same issues so I figure the repeated recoil is taking its toll on it.
i have a truglo gobble stopper red dot on my Taurus 44 mag. it works great. its all i had sitting around at the time and i see no reason to change. groups real well and kills groundhogs dead at 60 yards.