A gunstock incorporating one or more storage magazines for temporarily storing and retaining ammunition for easy access, the ammunition having a generally flat or recessed nose such as found for example in shotgun shells. The magazine has a port allowing insertion and removal of the shell and a biasing means whereby a single or multiple shells is pushed forward such that the recessed nose abuts against a projection member. The junction between the magazine bore and the magazine port is configured as a cornered edge on the interior side, and the distance from the cornered edge to the projection member is determined as a function of the ammunition to be stored, such that with a shell disposed against the projection member, the cornered edge will be located at least halfway up the annular brass base of the shell. In addition, the gunstock is provided with a pistol grip, which provides an improved means for grasping and holding the weapon while ammunition is being removed and loaded.