Built for clay target sports. The Browning Clay Burner Extended Choke Tube is long on length and even longer on performance. With an extended design and a proprietary differential banded brass gas seal, the Clay Burner is easy to remove and install. Scaled in 0.005" increments of constriction, there's a Clay Burner choke tube with the constriction you need to adapt to any target presentation.Invector-DS tubes fit only Browning shotguns designed for Invector-DS and are not for use in shotguns showing Invector-Plus or Standard Invector on barrel(s). FeaturesFollows industry standard constrictions in 0.005" steps Designed specifically for clay target sportsDurable stainless steel construction Highly polished interior finish reduces plastic buildupExtended length tubes are easy to change and add approximately 3/4" to the overall length of the barrelProprietary differential banded brass gas seal eliminates residue buildup and makes chokes easy to remove and install NOTE: The flat choke ...