The Orthos Arms Raider Vanguard Elite S4 12 Gauge Semi-Automatic Shotgun pairs a distinctive distressed army green finish with a ported 18.5" barrel and M-LOK handguard for a refined, modern shotgun platform. Its Kevlar-reinforced stock with adjustable cheek pad and Shock Force recoil system work together to soften recoil and keep the gun on target, while the carbon fiber elements and extended magazine tube add both rigidity and reduced weight.

This Raider Vanguard Elite S4 is built around a 3" chamber and semi-automatic action, making it well suited for defensive roles, range practice, and general field use. The Fibertron LED fiber optic front sight and ghost ring rear sight promote fast sight alignment in varied lighting, and oversized controls simplify operation with gloved or cold hands. Orthos Arms and Black River Manufacturing showcase careful attention to detail, delivering a shotgun that emphasizes reliability, ergonomics, and thoughtful innovation.

Key Features:

• Manufacturer: Orthos Arms
• Model: Raider Vanguard Elite S4
• Caliber: 12 Gauge
• Action: Semi-Automatic
• Barrel Length: 18.5" Ported
• Chamber Length: 3"
• Capacity: 6–7 Rounds (Model Dependent)
• Sights: Ghost Ring With Fibertron LED Fiber Optic Front
• Stock: Kevlar-Reinforced Adjustable Stock With Shock Force Recoil System
• Handguard: M-LOK Aluminum Forend
• Weight: 9.5 lbs
• Overall Length: 40"