Originally Posted by
Ex_Pat_Tanker
That does concern me a little with Tamiya's quality control - that brass 'nut' (I think it's actually a shoulder bolt?) is supposed to clear the recoil slide

Sounds like my recent problem with the slide slot not being formed properly? (bad stamping?)
Just for science (and great justice!) is the slide peice bent and hanging down, or is the brass head sticking up too far? Might help Tamiya determine which part is actually at fault...
(I suspect the arm to be honest?)
The shoulder bolt, as you say, was the problem. I looked again and the slide is not hanging down.