I sent him a pm this weekend and he said if I get a new style 2.0 that it will drop in but if I get an old style 2.0 then it will likely need to be milled out for the recoil lug. Now I need to find a new style stock, most places are out of stock and the one place I found I can't get a straight answer on whether it is the newer version or not. I am about to just order it and if it needs milled then I will send it to Robert and have it fitted and bed the action while it's there. I have to give Robert a lot of credit, he is very quick to respond and very helpful.