Be VERY careful about USO.
Make 100% sure that you got EVERYTHING you paid for, BEFORE you hand over dollar one. That includes silly things like making sure that the milliradian dots are spaced 1 milliradian apart and such.
The glass is tremendous, but the company sucks rocks. john williams - now deceased (used to be the president of USO) - threatened to sue me personally for putting honest statements about his scope and customer service on the net.
I'm not the only one though - he threatened to sue another guy I know too. He did wind up suing his own field rep, who was an instructor of mine - the instructor countersued. williams wound up dropping his case, but the instructor didn't, and won.
If you pay to have a scope built there, you up-front the dough. So far, so good (no, really, I am good with that). If a while goes by, and you have no scope, that's YOUR problem. By a while, I mean a year or so. If you go to cancel your order, you WILL NOT get your money back.
I could go on and on, but you get the idea. It's RARE to find a stocking dealer of USO scopes, and for good reason - the first one I met talked me out of buying USO.
If you've got one, and it works, then it'll be GREAT more than likely. As I said, the glass kicks Lupita's butt. If you're going to buy one, you're venturing into enemy territory........
[disclaimer: I don't know how the company is being run under j.w. junior - but his old man was a &%#@!]