Hi Guys,
Thanks for all your replies, much appreciated.
After looking at one of Richard's videos I took the barrel assembly off (couldn't believe how easy it was), took out the inner barrel and, though it was a bit fiddly to get the Allan key in, I tightened the grub screw into the top of the front sight and it is now really secure. I was wondering about putting another grub screw in, to tighten against the inner barrel. Would this be a bad thing to do?
My order from Eagle6 turned up this morning and with my new wrench I also managed to tighten the lock nut on the stock. I was a