3' Builder® Rig Height Extension

Need some extra headroom for ring muscle-ups? Use the 3' Builder® Rig Height Extension to convert a 9' Builder® upright into a 12' upright, or 12' upright into a 15' upright. Each extension tube comes with 4x straight brackets. Only compatible with Get RX'd 3" x 3" Builder® rig uprights.

Freestanding rigs require 2x extensions per ring muscle up station. Wall-mount rigs require 1x extension per ring muscle up station.