Got my 2 stage trigger installed at ArmaLite yesterday and what a difference over the factory trigger. ArmaLite has a really good gunsmith in their custom shop who does wonderful work. He spent the better part of an hour with me until we got the trigger just the way I wanted it. The only other modification I'm going to do is to add a Magpul CTR stock. The factory stock is okay and just like any other AR stock, but I don't like any wiggle so the CTR is the way to go.