The Orthos Arms Raider S4 ODG 12GA 18 is a semi-automatic 12-gauge shotgun built around a gas-operated system and a rugged T6 7075 hardened aluminum receiver. Its 18.5" chrome-lined steel barrel is paired with an M-LOK aluminum handguard, angled three-piece modular vertical grip, and top-mounted Picatinny rail, giving shooters a configurable platform with excellent control and accessory mounting options. Orthos’ patented Shock Force recoil system and adjustable stock with cheek pad work together to reduce felt recoil and tailor the fit to the shooter.

This Raider S4 configuration is chambered for both 2 3/4" and 3" shells and offers a 6+1 capacity with 3" shells or 7+1 with 2 3/4" shells, making it well suited for home protection, training, and extended range sessions. Ghost ring sights combined with the Fibertron LED fiber-optic front sight provide fast target acquisition in varied lighting. Thoughtful touches like the oversized charging handle, large enhanced bolt release, spring-assisted ejector, and rubber overmolded grip reflect Orthos’ focus on practical ergonomics and dependable performance.

Key Features:

• Manufacturer: Orthos Arms
• Model: Raider S4 OD Green
• Caliber: 12 Gauge
• Condition: New
• Action: Gas Operated Semi Automatic
• Barrel Length: 18.5"
• Capacity: 6+1 (3"), 7+1 (2 3/4")
• Number of Magazines: Tubular Magazine
• Unique Features: Shock Force Recoil System, Fibertron LED Front Sight, M-LOK Handguard, Angled Modular Vertical Grip
• Night Sights: Fiber-Optic Front With LED Illumination
• External Safety: Oversized Safety Switch
• What's In The Box: Raider S4 OD Green Shotgun, Duty Sling, Magazine Tube, Breacher Choke Tube, Fibertron LED Front Sight, Adjustable Stock, Owner's Manual
• Weight: 9.5 lbs
• Length: 40" (with stock collapsed)