looks like it's time to put together an upper for one of those two lowers i bought a while back. Les Baer Upper - Flattop w/out F/A w/ Port Cover http://www.lesbaer.com/pricnga.html - $129 16" Pencil Barrel - http://www.model1sales.com/item-det...age=bar16lw.gif&CFID=5801622&CFTOKEN=44351073 - $165 (or is the chrome lined worth the extra $35?) CF Handguard - http://www.hiperform.com/hand-guards.htm - $125 Fulton Slickside BCG Complete - $165 Larue Buis - http://stores.homestead.com/Laruetactical/Detail.bok?no=29 - $89 Gas Tube & Roll Pin - http://www.model1sales.com/item-detail.cfm?ID=BAP003&storeid=1&image=barasparts.gif - $12 What else do I need? Other than that, all I'll need is a light. Anyone know where I can find some lengths of pic rail to mount a light?