Abstract: An apparatus for supporting a firearm has a base, at least one hinged surface securement member attached to a bottom surface of the base and an extensible firearm support port in the base. An upright locking member is removably placed within the extensible firearm support port. An extensible firearm support is removably connected to the upright locking member. A plurality of seating member ports are in the base and are arranged in symmetrical sets of four. The extensible firearm support has an outer extension tube member and an inner extension tube member slidably, removably and lockingly disposed within the outer extension tube member. The upright locking member is hingedly and removably attached to an end of the outer extension tube member. A firearm stabilization member is removably connected to an end of the inner extension tube member. The inner extension tube member is slidably and releasably locked to the outer extension tube member by a first locking pin.