5/2/2012 9:37:55 AM AR-15 BB: AR-15 Rich_V: AR-15 Redtazdog: And that is why I made a adjustable gas block for my 308 . http://i197.photobucket.com/albums/aa166/redtazdog/Mega308done30w.jpg Me too! http://i298.photobucket.com/albums/mm273/richardv308/018-1.jpg SLICK. Hows it work? It’s basically a needle valve with 12 dent positions per turn, one full turn is about 100% open. When used on my AR10 with standard 150 gr loads I get full function with it about half way open. When set to closed it is completely closed. I used 17-4 stainless for the construction. As others have said, puts the brass in a neat pile a few feet away with noticeably less/smother recoil. SICARIO