When I try to field strip it, it gets caught up on its little track when I try to push it forward with my thumb. It has a little bit of wiggle room to slide forward but it gets caught up right before it pops out and takes a significant amount of effort to completely get it out. The receiver cover is easy enough to take off but it's almost impossible to get it back on because the recoil spring button thingie won't slide forward enough to give it the proper clearance. The only thing I've done to the rifle lately is I duct taped part of the stock and put new toothpicks in the screw holes because the stock was a little bit wiggly and the screws holes were stripped out. The "thingie" I'm talking about Anything look wrong here? I could always dremel down whatever's making contact but I don't know for sure where it's getting caught up.