Abstract: A trigger frame assembly that is received within a grip of a firearm for use in providing a housing for a plurality of internal action component parts of a firearm, such as, a trigger. A trigger frame assembly comprising a plurality of panel members that are braced and connected together via a plurality of mechanical fasteners, or an interlocking snapping mechanism, that allow the panel members to fit firmly together, wherein the mechanical fasteners also allow the panel members to be disassembled, as necessary, thereby allowing for easier replacement and configuration of the panel members and the internal action component parts of the firearm.