The street date is this Saturday but the Avengers: Infinity War Marvel Legends are up for pre-order at Entertainment Earth.  A bunch of other Avengers: Infinity War items went up, including the Hero Vision series, so be sure to check them all out.

All Avengers:Infinity Pre-Orders

Avengers Infinity War Marvel Legends 6-Inch Action Figures Wave 1 (Thanos BAF)

1x AVN 6 INCH LEGENDS PROXIMA MIDNIGHT
2x AVN 6 INCH LEGENDS IRON MAN
1x AVN 6 INCH LEGENDS CAPTAIN AMERICA
1x AVN 6 INCH LEGENDS TASKMASTER
1x AVN 6 INCH LEGENDS MARVELS SONGBIRD
1x AVN 6 INCH LEG MARVELS SERPENT SOCIETY
1x AVN 6 INCH LEGENDS IRON SPIDER

Avengers: Infinity War 6-Inch Action Figures Stones Wave 1 (Hero Vision)

Case includes 8 individually packaged figures:
4x AVN 6IN DLX HULKBUSTER
2x AVN 6IN DLX HULK
2x AVN 6IN DLX ROCKET RACCOON AND GROOT

Marvel Legends Series Infinity Gauntlet Articulated Electronic Fist

Avengers: Infinity War Marvel’s Stormbreaker Electronic Axe (IN STOCK)