20" AR-15 under 6Lbs, under $1000?

[railroader]

They aren't chrome lined but here are some lightweight 20" rifle kits. All you need is a stripped lower and a bullet button. http://www.del-ton.com/Rifle_Kit_p/rkt102.htm Mark

[Sam .223]

i have a carbon 15, well its my wife's, but it has a 16" BBL and its weight is just at 6lbs, it has a 3-9x42 scope and a grip pod. i imagine if you use a gov profile bbl and no accessories you could get your goal weight, or at least be really close to it.