2013Curious of DOB on a 500 S/N U707XXX. 28" barrel, blued bolt and trigger, no porting. I tried to figure it out, but I couldn't. I suck. I think it's fairly old based on no barrel porting.
Thanks man! I thought that was it, but my old 835 is a UM number and it's from '88-'89. It's confusing how they do serial #'s.2013