 The same operation is done for unfolding to the stock to the open-position.The bracket and knuckle assemblies feature camming surfaces that allow the emergency unfolding of the stock by simply pulling the buttstock rearwards, however this should generally be avoided as it will wear down the mechanism rapidly over time, and lead to the stock wobbling in both positions.There were six different types of Galil folding stock (not including the Micro or Galatz models) that were utilized over time on the Galil and R4 series of weapons.