Abstract: In a weapons storage system or kit for constructing a weapons storage system, sidewalls, and a top wall are provided which, when assembled, form a cabinet. At least one weapons back panel section has a plurality of keyhole shaped apertures in rows and columns substantially throughout the back panel section, the at least one back panel section being mountable in or at a rear of said cabinet. A plurality of weapons support members each having a plurality of outwardly extending mounting protrusions each comprising an enlarged head and narrower neck portion are receivable in corresponding keyhole shaped apertures of the at least one back panel section for construction of the weapons storage system.