Originally Posted by bluez
But an AR upper still means the steel case problems with a direct impingement gas system exist.
Then I might as well go ahead and buy Wolf in 223 and get the same price/problems trade-offs with my exisitng AR's
Or is there a piston 5.45mm upper anywhere?
Blue, there is no steel case problem. Thousands and thousands of folks shoot Wolf in their ARs. I even use the old lacquer coated stuff.