This tent may not be ultralight for 3 season but it's pretty damn light for a 4 season double. Tunnel style design with 3 poles. I recently confirmed you can pitch it fly only and save about a pound and a half. Excellent condition.
Min weight if you use both interior and exterior is 4 pounds 8 Oz.
You could definitely shave weight by replacing the guylines as well.
Looking for $350 shipped