Action: Auto - Capacity: 10rds - Gague: 12 - Barrel: 24 Vented Rib - Choke Accu-Set - Shell Size: 2.75 - Chamber: 3 -Sight: Fiber Optic Front - Stock: Synthetic Black - Finish: Blued - Overall Length: 41 - Weight: 7.75lbs. - Performance-enhancing features on the JM Pro Series include Mossberg s extended tactical bolt handle. Forend cut to facilitate faster reloads over sized safety button orange magazine follower and protective barrel clamp for the extended mag tube. The 10-Shot Tactical Class has a 24-inch non-ported vent rib barrel with standard ACCU-CHOKE Modified tube red fiber optic front bead sight extended 9-shot magazine tube adjustable trigger stop and anodized receiver with chamfered loading port opening. The 9-Shot Tactical Class version features a 22-inch non-ported vent rib barrel with standard ACCU-CHOKE Modified tube. red fiber optic front bead sight extended 8-shot magazine tube adjustable trigger stop and anodized receiver with chamfered loading port opening.