Mossberg Barrel, 12 Gauge, 24 Vent Rib, AccuSet Choke Set, Fits Mossberg 500/Maverick 88 6 Round Variants (Not Compatible with 500 Cruiser or 500 Chainsaw), VBlued Finish, Blue, Bead Sight 90135 24" All-Purpose barrel with vent rib" dual bead sights" smoothbore" and blued finish. Includes Accu-Choke set (Improved Cylinder" Modified" Full) and choke tube wrench. Compatible with 12 Gauge Mossberg 500 and Maverick 88 6-shot models.