I have an Olympic Arms *1:9 twist *SS-16 inch bbl *Flat Top Upper with front post sight/gas block *UTG or DPMS carry handle *UTG Quad rail slapped on there. (Hey don't knock it, its held up thus far) :gun13: I'm not a AR-15 or a accessory purist. I use what has worked, is cost effective and has a decent review rating. All those factors come into play, not the "Name Brand" or things I gotta over pay for. I'm looking to use mine in a partial or full trade for a flat top, single rail gas block "20-some odd inch" upper. Make, Model, Pic, any other items thrown in with it? (Handguard, sights, etc..) I'm located in Oregon.