IPA: //ˈɡʌn.stɒk//
KK: /gʌnˌstɑk/
The part of a gun that is held by the shooter, usually made of wood or plastic, which supports the barrel and action.
He adjusted his grip on the gunstock before taking aim.
Gunstock → The word is formed from "gun" (from Middle English *gunne*, meaning a firearm) and "stock" (from Old English *stoc*, meaning a support or base). A gunstock refers to the part of a firearm that serves as a support or handle.
Think of a 'gun' as a firearm and 'stock' as a support — together, they create the part of the firearm that you hold.