I have this set up, and from the looks of it that is not the only thing you did wrong... if you look inside the treaded sleeve you will see a silver ring inside almost to the center... you need to cut of the spring perch on the AGX... Right around the Weld that it was sitting on, you cut that whole thing off... then the treaded sleeve sits over that and the silver ring inside rests on the weld...

as for the gold ring etc etc...the only place you would MAYBE need to put it is on the weld of where the spring perch used to be and then you put the treaded sleeve... dood didnt your set up come with directions??? butyeah up top this is how it goes

rod
washer
silver cap
washer stock upper perch
washer again dont forget this washer or the whole set up will be effed up...ill post pics to see if they help you at all...but look for your directions man