Someone at my wife's work is wanting to sell a Sig Model 556 rifle. Not sure if it's the Classic or SWAT version but they look pretty sweet with the folding stock and gas system. Any thoughts on either as far as quality and or price?

https://www.the-armory.com/shopsite_...oduct1847.html

https://www.the-armory.com/shopsite_...oduct1417.html