Abstract: A holster supports a shotgun at the side of a shooter above the ground in an opened condition. A seat supports the shotgun and spaced side walls extend upwardly to receive the pivotally connected barrel and stock portions of the shotgun therebetween so as to prevent the shotgun from sliding laterally off the seat. A mounting device is provided on one of the side walls for mounting the holster proximate the waist of the shooter. The seat has a front section for supporting the barrel portion of the shotgun and a rear section for supporting the stock portion of the shotgun. The front and rear sections lie in intersecting planes which extend downwardly at an obtuse angle from their line of intersection to support the barrel and stock portions of the shotgun at approximately the obtuse angle defined by the planes. A pad preferably of leather protects the surface of the shotgun from being scratched or marred by the holster.