A buttstock includes a main body and a protecting member. The main body includes a shell member and an automated external defibrillator disposed in the shell member. The protecting member is movably connecting with the shell member of the main body so as to move relative to the shell member between a first position and a second position, wherein the protecting member shields the automated external defibrillator at the first position and exposes the automated external defibrillator at the second position respectively.本創作係為一種槍托結構,包含本體以及一保護件。本體包含一殼件以及一自動體外心臟去顫器,自動體外心臟去顫器設置於殼件內。保護件係可動地與本體之殼件相連接並可相對殼件於一第一位置以及第二位置之間移動,而於第一位置遮蔽自動體外心臟去顫器且於第二位置顯露自動體外心臟去顫器。