Caulking gun carriage

This specification discloses carriages for a caulking gun. The preferred carriage includes an integral central housing section preferably made of extruded aluminum. The integral central housing section preferably has co-extruded ribs or thickened sections, at least some of which most preferably provide continuously-formed fastener passages. The carriage preferably also has planar end plates secured to the integral central housing section by fasteners such as, most preferably, self-tapping screws. The screws penetrate associated passages in the end plates and in the ribs or other end structure of the central housing section. The carriage may be adapted to accommodate one, two, or more tubes of flowable material such as caulk, epoxy components, adhesive, etc.