The Orthos Raider S4 in 12 gauge with an 18.5-inch barrel and FDE Cerakote finish (brand part no. S4RFDE) is a gas-operated tactical shotgun built around Orthos’s patented SHOCK FORCE recoil system, designed to keep 3-inch magnum shells comfortable to shoot. Orthos machines the receiver from T6 7075 hardened aluminum, wraps an M-LOK aluminum handguard around a full-steel, smooth chrome-lined 18.5-inch barrel, and tops it with a Picatinny rail. The Raider S4 feeds a 6+1 capacity magazine with 3-inch shells (7+1 with 2.75-inch), and an oversized safety switch and large bolt-release lever speed up manipulation. A FIBERTRON LED-illuminated fiber optic front sight rides on a ghost ring rear, and the adjustable stock includes the SHOCK FORCE recoil system and an adjustable cheek pad; overall length runs 40 inches with the stock collapsed. Among tactical semi-auto shotguns, the Raider S4 favors shooters who want dedicated recoil mitigation on a magnum-capable defensive platform.

Key Specifications

• Chambered in 12 gauge with a 3-inch chamber.
• Runs Orthos’s patented SHOCK FORCE recoil system.
• Features an 18.5-inch chrome-lined steel barrel.
• Feeds a 6+1 capacity magazine (7+1 with 2.75-inch shells).
• Receiver is machined from T6 7075 hardened aluminum.
• Equipped with a FIBERTRON LED fiber optic front sight and ghost ring rear.
• Finished in FDE Cerakote.
• Has an adjustable stock and cheek pad.
• Runs an oversized safety switch.
• Ships at approximately 9.5 pounds.

Frequently Asked Questions

What is SHOCK FORCE? Orthos’s patented recoil system built into the adjustable stock, designed to keep even 3-inch magnum shells comfortable to shoot.

What sight does this shotgun use? A FIBERTRON LED-illuminated fiber optic front sight paired with a ghost ring rear sight.

Buy the Orthos Raider S4 Tactical Shotgun

Dedicated recoil mitigation on a magnum-capable defensive platform is exactly what the Raider S4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.