Wal-Mart exclusive.
A couple of cases of retail samples of this were accidentally left out for sale in a Wal-Mart in Kansas several weeks before the official release. Those versions may have slight paint differences from the general release and were packed with mismatched comics. They are not listed here, but you can check them out on the blog: Marvel Legends: The Emporia, Kansas Giant Man Series Retail Samples
Variant features a mustard yellow outfit and a clean-shaven face.
Empowered by the enigmatic Professor's secret formula, high school student Robert Reynolds became a superhuman. After trouncing the school bully who had tormented him, Reynolds sewed together a costume and made his debut as the heroic Sentry. One of very few superheroes active during the years just prior to the Fantastic Four's emergence, Sentry gained new importance when the new wave of heroes rose to prominence.