I've had this finished for a couple of months now. I've had a boatload of trouble getting this shotgun to work properly, mag problems, some ejection problems (it would seem the ejector is not far enough forward on the rail) but mostly issues with the gas system and shot loads. anyways I digress, here is my Saiga 20. All my mags are Franken-mags, the brake was homemade on my mill and lathe as was the vertical grip and I also modified the Halo rail by milling off and/or drilling out the excess material. The Halo Rail is great but it is ridiculously heavy.
http://i26.photobucket.com/albums/c1