Look at the buttplate face. If it hasn't been lost, you should see a thumb-screw type of affair. This is the magazine tube and the turn-screw should be facing right to left. Turn the end so it faces...
"Where is a Remington Nylon 66 for these prices?" Where is the rest of the question?
I paid a nominal fee for one when it first came out and have found several in the past 3 years for triple what...