Red line says can only be equipped by Strikers. The 2% is a 2% chance to stun enemy.
I might be wrong, but it looks like 6 lugaru claws from the very first lugaru map. Could be wrong.
also, does anyone know how to unlock the map that has 2 Starfish/Eye Ball thing as the boss? (part of the west coast map lvl 27-30 maybe)
You have to complete the Road to Middle Ocean quests.