I have a Leshiy 2 that I bought used in .22 and the gun shot fine but has recently started to not cycle and is now to the point it will not cycle at all. I have the red mags and the metal roller. If I open the gun it will index. I removed the barrel and reseated it but no luck. The magazines are not damaged and I put to retension covers on the magazines as the old ones did look a little worn. Any help would be appreciated