Modifications to my Weatherby Tactical PA459

I have been building this SG for a while, it's not easy because nobody makes accessories for this gun.

The choke tubes are from Briley, I found a shop that has a bunch for $25.00 each, it has an IM in it right now. The mag extension is for a Benelli Nova, holds 2 extra, bringing the total to 7+1. The side saddle is a Mesa unit, again made for the Benelli. I had to machine it a little and add some extra holes to make it fit. So far, I like this set up. The aluminum piece underneath is to keep the shells at a certain spot to get them out faster, but still be held in securely.

The nest project is to extend the lifter, it's a little short, my thumb keeps getting stuck in it.