Specifications Strut Stopper Xtreme Choke Tube Winner of 11 NWTF World Still Target Championships Holder of 7 NWTF World Records Designed by four-time winner of NWTF World Still Target Championship Internal grooves improve patterning Optimum construction for tight, dense patterns Precision CNC-machined Accepts all turkey loads including Hevi•Shot No steel shot Endorsed by the National Wild Turkey Federation Gobble Dot Universal Dual Color Turkey Sight Truglo's original turkey sight in Dual Color Fits all ventilated rib shotguns regardless of width or tapering Extremely low profile Front diameter is .120"; rear diameter is .040" Endorsed by the National Wild Turkey Federation