What I have for sale is a brand new, never been opened, UTG Tactical Rail Adapter. It apparently converts a .22 Base to a Weaver/Picatinny rail. I bought a scope mount rail for my shotgun, but that's obviously not what I received. So, it's up for sale. I got it for $12 on ebay, and I don't want to have to go through the return process for it, so I'll sell it to one of you guys for $6 out the door with shipping included. That pretty much takes care of the shipping.