BudsGunShop.com - chukes

No sorry but this one doesn't either. It has a fixed cylinder bore. Sorry and hope this helps.

William, Fixed Cylinder Bore as well Sir. Most 18.5 inch barreled shotguns are defensive shotguns with Fixed Cylinder Bores. This shotgun Includes: Chokes Set: Improved Cylinder, Modified, and Full -- budsgunshop.com/product_info.php/products_id/35260/rock+island+armory+x4+tact+shotgun+semi-automatic+12+ga+185+3+black+synthetic+st

No this one also features a fixed Cylinder bore.
This XX3B-M features an 18.5" tactical home defense barrel with a fixed cylinder bore and a rifle style front sight for rapid target acquisition.