Patent ID: 7926217

Claim:
A self-supporting composite material stock for use with a firearm having a barreled action and with a separate buttstock, comprising: a self-supporting structural shell made substantially of composite material, comprising: an exterior wall; an interior wall, at least some portion of which is inwardly spaced from the exterior wall; wherein a space is defined between portions of the interior and exterior walls, said space being devoid of structural support material; a cavity in the shell having an open top and configured to accept and secure a barreled action of a firearm by vertical insertion through the open top, the cavity having an interior volume defined at least in part by at least a portion of the interior wall; and a buttstock attachment member fixed to the structural shell and configured for attaching a detachable buttstock wherein a longitudinally-extending space is defined between lateral portions of the interior and exterior walls, the interior and exterior walls being connected together at vertically spaced apart positions, whereby a box beam structure is defined along opposite outboard positions relative to at least a portion of the barreled action.