I came across of Universal M1 non-restricted carbine with a scope. It looks like this(except the scope is different):
and the scope base is exactly like this one:
It comes with 2 magazines and old Bushnell scope. Also, the maxicon.com says that "The Universal M1 Carbine comes drilled and tapped for a scope mount, with a plastic filler plug for the 4 holes on the left side of the receiver.", so it's not a custom drill and tap job.
What would this piece worth these days?

and the scope base is exactly like this one:

It comes with 2 magazines and old Bushnell scope. Also, the maxicon.com says that "The Universal M1 Carbine comes drilled and tapped for a scope mount, with a plastic filler plug for the 4 holes on the left side of the receiver.", so it's not a custom drill and tap job.
What would this piece worth these days?