I'd recommend posting it here in the for sale section, as a trade for the gun you want. You should post pictures, both right and left side, along with any additional items such as box, papers, cleaning kit, etc. I would recommend shipping through a licensed firearms dealer. Shipping costs can be negotiable. And be sure to keep it oiled and in a safe, dry area! You want it to stay in as good a shape as possible to command top dollar/best trade.

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Even older, even crankier....