Browning's Invtecor-Plus Midas Extended Black choke tube extends beyond the end of the barrel for easy removal and installation. It is constructed of stainless steel with a black oxide finish and laser etched black chrome accent band. Invector-Plus choke tubes fit only Browning shotguns designed for Invector-Plus and are NOT for use in shotguns showing Standard Invector or Invector-DS on the barrel(s).