A support for the lower ends of elongated articles stored in an upright position, such as the lower ends of firearms contained within a storage cabinet. The support includes a base, and one or more support members are releasably engageable with the base. Each support member receives and secures the lower end of a firearm relative to the base. Each support member is releasably engaged with the base via one or more releasable fasteners that extend through openings in the base and the support member. The base may include a series of slots, within which the fasteners are movable to adjust the position of the support members on the base. The one or more support members may be a single support member that supports the lower end of each firearm, and a series of support members are mounted along the length of the base to support the lower end of a series of articles. Alternatively, the one or more support members may be a pair of support members that cooperate to define the upwardly facing recess within which the lower end of the firearm is received, and which may be moved together and apart in the slots to accommodate differently dimensioned firearms.