If the UPO is too big for you (which it is for me), go for the regular PO. At 42mm, it's just the right size. I haven't taken mine off since I got it 2 weeks ago...
Yours does look nice Q. I had mine on a cheap black Nato and liked the look a lot. I think I'm going to buy all of these and switch them around. I REALLY like the tan one. Saw it on a sub once and it was awesome...