I have looked at your pictures a number of times I am convinced, as someone has already said, that the butt stock has been drafted to a small part of the original stock. I do not believe that this is in any way a sleeve and if you try to remove it, you’ll destroy it. I hope you didn’t have to pay a lot of money. If the gun comes up nice and fits you, I would shoot it as is and leave it alone. As Ted will readily tell you, restocking a darne is a job for a skilled stock man and quite expensive.

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