Lego Marvel Hulkbuster (4,049 pieces) $327 (was $550) See at Amazon See at Target Before Lego released the staggering 5,201-piece Avengers Tower last holiday, the largest Lego Marvel building kit was the Hulkbuster from Avengers: Age of Ultron. At 4,049 pieces, the Hulkbuster is a mammoth build in its own right. At launch, the Hulkbuster set retailed for a whopping $550. These days, you can typically find it for closer to $400, but right now you can add the Hulkbuster to your Lego collection for $327 at Amazon and Target. It’s just one of numerous notable Lego Marvel deals at Target this week.Yes, $327 is still …