A weapon grip assembly for attachment to a forward portion of a weapon is provided. The invention includes a base assembly supported for operative engagement by a handle. The base assembly includes clamps adapted to be secured to a forward portion of the weapon and further includes a post having a clamp end adapted to retain the clamps for pivot motion with respect thereto. The post of the base assembly is received within a bore of the handle, a mandrel being interposed between the handle and the clamps of the base assembly. As the base assembly is drawn into the handle, by rotation of the handle about the post of the base assembly, the mandrel receives the clamp end of the post, with an upper free surface thereof engaging the clamps for pivoted closure about a portion of the weapon in furtherance of securing the weapon grip assembly thereto.