that barrel retaining screw will come loose and damage the soft threads if the barrel can move

Im sure I have already mentioned it, but anyway. I stripped mine and wasnt happy with the fit, nor with the flippant answers I had read concerning, just keep tightening it, thats not a solution in my opinion

so I experimented, I found that by using small pieces of insulation tape stuck to the barrel, I could get the barrel to be a snug fit, this means that it cant move about, and hence the screw cant come undone

since putting mine back together its had somethign int he region of 3k rounds thru it, not once have I had to even look at the barrel screw, also if you grab hold of the barrel on mine, it wont move up and down like a lot do.

only thing I have done is remove the mag safety.

soon as I got some spare cash I will be putting new sights on it.

with regards to accuracy mine rested on the bench and a rolled up bit of carpet will shoot 1-1.5" groups at 25m, hoping to get a red dot on there and then see what its like.