Gauges: 12-ga., 2.75”. Barrels: 18.5” (AccuChoke-compatible). Introduced 2025. Features: Corrosion-resistant internal parts and finishes, including nickel boron-coated gas piston, magazine tube, hammer, and sear. An optics-ready receiver for direct mounting of micro-dot optics (RMSc footprint); drilled and tapped receiver; oversized ergonomic bolt release; knurled and extended charging handle; enlarged and beveled loading port; elongated, pinch-free elevator; bright orange anodized follower; extended magazine tube with 7+1-round capacity. The synthetic stock is self-draining and has a user-adjustable length-of-pull with a range of 12.5”-14.25” with the use of inserts. Further adjustability is provided for drop at comb and cast with the use of incremental stock shims. The forend features an integrated heat shield, two QD cups, three M-LOK mounting slots (3, 6, and 9 o’clock positions), and Mossberg’s signature texturing. Stabilizing barrel clamp with two-sided M-LOK mounting slots and swivel studs. Two QD mounting cups on stock (right and left) allow the sling mount to be positioned in 90-degree increments (3, 6, and 9 o’clock positions). Rear ghost ring and front fiber-optic sights with protective, low-profile wings. The receiver is optics-ready for the direct mounting of micro-dot sights. Adapter plates are provided for optics-ready receiver for mounting RMR, Docter, and Leupold footprints. Redesigned, oversized ambidextrous safety. Redesigned one-piece magazine tube for ease of maintenance and improved reliability. The magazine spring is retained for ease of removing and attaching a barrel. A detachable sleeve protects the magazine tube and secures the forend. It has a Vang Comp 6-Shotshell Carrier Card with Velcro mounting plate and hook-and-loop card attachment system. Cerakote coatings (Flat Dark Earth and OD Green) on select models.