Originally Posted by BlackZeda

Speaking of gas-piston ARs....I watch this goofy show "Sons of Guns" where the last episode they were designing a revolutionary AR that was as dependable as an AK for the DOE. Yes they milled out their own receivers, but it looks like they just ordered a gas-piston from another manufacturer. It's like they don't expect gun-nuts to know that the H&K 416 or ACR or SCAR have been out for awhile now.