Yes, it does include a 28" Vent Rib Barrel that can be choked with the Accu-Choke Tubes.
The 18.5" security Barrel has a fixed choke and cannot.

yes it comes with 28 inch vent rib barrel with mossberg accu choke tubes and a 18.5 inch fixed cylinder choke

Hi Adam and welcome. Two barrels are included: (1) 18.5-inch Fixed Choke Security Barrel and (1) 28-inch Vent Rib Barrel that comes with a removable Modified Choke. It will accept Full and Improved Cylinder Accu-Chokes here : defensedepot.com/product/mossberg-95190-accu-choke-12-gauge-full-choke-tube -------------------------------------------------------- dadsgunsandgolfcarts.com/products/hunting-mossberg-95200-015813952002-6714

Hi Adam, yes sir, this comes with a 18.5" Security Barrel with a fixed cylinder choke, and a 28" Vent Rib Barrel that accepts Accu-choke tubes (comes with modified).
Stay safe & have a great day!