Sprite dynamic sorting pivot

I need this laser sprite (screenshot) to be in the front of the wall like it's sorting center being in the position of player's shadow



But now laser sprite's pivot is at the beginning of laser (slightly up than needed) so unity think it is upper than wall sprite (wall sprite's pivot is in the bottom center)

I know that i can write my own sorting system and change Order in Layer by Y and apply offset, but Unity default sorting is more convenient