gunstock

[guhn-stok] /ˈgʌnˌstɒk/
noun
1.
the stock or support in which the barrel of a shoulder weapon is fixed.
Origin
1485-95; see gun1, stock
British Dictionary definitions for gunstock

gunstock

/ˈɡʌnˌstɒk/
noun
1.
the wooden or metallic handle or support to which is attached the barrel of a rifle