Mossberg X-Factor Extra Full Ported Choke Tube for 12 ga Mossberg 500/535/930

For use with Mossberg 12 Gauge 500 535 and 930 and Maverick 88 threaded barrels. Also compatible with Smith & Wesson Savage & U.S. Repeating Arms (Win-choke) and Browning Invector interchangeable choke models.