The BFD (Blast Forwarding Device) by Indian Creek Designs out of the box was simple and easy to install.  Instructions were clear and it just took a little elbow grease to put on.  It uses the existing flash suppressor along with a screw on attachment to hold it in place.  As you can see from the video (link below) it worked marvelously. 

All the noise and gas both went down range as advertised.  I will say this is for the price and function it is awesome.  I would caution however not to just shoot without some cans on or ear plugs.  It is still loud.  Solid quality and it does not feel cheap.  It also enhanced the look of the gun in my opinion.  You will need a regular sized hand guard those for it to fit or longer than the hand guard if you just don’t care about the look and want the function only.