This is a replacement spring for XD(m) 9MM Magazines. This spring includes the bend as shown in the picture and so that it may lock onto the factory basebad of the same configuration.
This spring is a plus-power spring for the sake of reliable feeding. The spring includes an extra coil and thicker wire in order to give the spring more lift. Using this spring may cause you to lose a round of capacity due to the noted features.
Note: For use with full-length magazine tubes, NOT compact/short magazine tubes.