I just received my 10/22 version 2. In advance i bought the RA TECH 380mm and the RA TECH hop up.
After disassembling the barrel. I noticed that mine has a inner sleeve inside the outer barrel that looks like a inner barrel extension for the stock barrel. I cannot install the 380mm cuz this "built in" inner barrel extension prevents the 380mm from going in. Any idea on how to remove that inner extension so the 380 tbb fits.
Also, this little metal shim fell off the lower receiver. It is about 1cm long and 3 mm wide. I have no idea but when i flipped over the lower, it fell from somewhere? any ideas of were it goes? I think it fell off near the barrel nut but it came from the magwell side underneath the receiver...i think. This is approximately the size.
