20 Gauge Win-Choke Tap & Reamer
Reamer, Tap and 5 bushings
Which Choke Tube Style Should I Thread My Barrel for?
Rem-Choke® & Win-Choke® style tubes are thicker and generally more available in local sporting goods stores.
Tru-Choke™ Standard tubes are thinner, and Tru-Choke™ Thinwall style tubes are thinner yet, so a wider range of barrels can be threaded to accept them. But they are less available. Check “Screw-in Choke Installation Requirements” to make sure your barrel will work with the selected style of choke tubes.