Saw a dealer at a gun show here in PA this weekend and he had these cans for sale. I have an AAC M4 2000 I bought in 2004 love it on my M4 config. I was just wondering about their .308 as the price is well below any the other brands. A major difference I saw was that they are able to be disassembled to be cleaned/maintenanced. The other cans I've worked with were the sealed(welded) design.