My son has a Springfield XD, and am looking to get a red dot for him. He's a pretty fair shot with a rifle, but hasn't shot much in handgun. So, am looking at what's out there for handgun. Would like to find something with maybe a 3moa dot, and a mount that doesn't need a gunsmith to mount it. Looking at maybe a Vortex Venom, or a Burris Fastfire. Any suggestions?