nico- They have "reasonable gunstore" prices. Nothing to go out of your way for, but not rediculous. Seeing that mags are about $10.00-$15.00 online, I'd guess x-ring sells them for $15-25.
I was in there 2 days ago. I saw 1 stripper lower (dpms-$140), 1 complete lower (unknown make $250 I think), and no uppers that I saw. They probably had 20 or so complete AR's. 20 or so AK's (They are an Arsenal inc dealer). A few of the bigger stuff like FAL's, HK91, etc. They usually have at least 1 .50bmg rifle. They had a RPD a little while ago, too. Good selection of 1911's, too. No where near a mecca, but decent selection for the area.
They are nice guys. Small shop, but lots of evil black stuff packed in... compared to most of the hunter oriented shops that I know of. Give them a call and ask away.