Well the recoil lug has two screws way up inside you have to look close to see them,other than that I had to lap mine as it had some burrs in the rifling. The trigger assembly can be taken apart but as the trigger pull on mine was a nice crisp 3 pounds I have not. [If its not broke don't fix it.]
My thoughts are that for $160 its got to be the best buy I ever made. Lee