Last weekend I picked up a dust cover for my early Type 99. The DC has a metal tab on the inside which I assume is to keep the bolt from wearing out the cover when pulled back. When I try to install the cover it appears to be too long. It looks to me that the forward right side of the cover is hitting the stock and preventing it from sliding forward enough to close the bolt. Im a complete novice about these things. Is the cover for some other type Arisaka or does the the covers for the 99 have a notch in them? I really don't want to cut the stock or cover to make it fit.