A Limited Edition Build That Sold Out Fast

In the world of high-performance shotguns, the Raider S4 Project Gray stands out amongst the crowd offering a versatile and aesthetically pleasing firearm. This 12-gauge, gas-operated semi-auto shotgun is built for versatility, comfort, and peak performance. Whether you’re an experienced shooter or someone looking to add a premium tactical shotgun to your collection, the Raider S4 delivers in every category. Its Project Gray Cerakote finish gives it a unique aesthetic, while the SHOCK FORCE recoil system ensures smooth handling even with heavy 3” magnum loads. With a top-mounted Picatinny rail, an adjustable carbon fiber stock, and Black River Manufacturing furniture, this firearm is fully optimized straight out of the box. But here’s the catch—it’s completely sold out. The Raider S4 Project Gray hit the market last week, and in no time, fans of Orthos Arms shotguns snapped them up, leaving none in stock. Below is the product description and features for the Product Grey Raider S4. 

Product Description 

The Raider S4 shotgun has been years in the making. Our patented SHOCK FORCE recoil system comes standard. This is the best recoil system on the market today and ensures you can even shoot 3″ magnum shells in comfort. The shotgun also comes standard with the adjustable cheek pad so you can find the perfct fit. We have partnered with Black River Manufacturing to produce the furniture. Also standard on the shotgun is the enhanced charging handle and bolt release which provides effortless operation. We have also developed our FIBERTRON LED front sight. A small LED provides a subtle glow to the fiber optic front sight which provides unparalleled target acquisition. All of these premium features are packed into the shotgun and come standard right out of the box.

Features

• Model: Raider S4 Project Gray
• Capacity: 6+1 (3″ shells)    7+1 (2 3/4″)
• Sling: Combat Sling
• Gauge: 12 Gauge
• Grip: Angled 3 Piece Modular Vertical Grip With MLOK Rail Grips
• Top Rail: Top Mounted Picatinny Rail
• System: Gas Operated Semi Automatic
• Chamber: 3″, 2 3/4″
• Ammunition: 3″, 2 3/4″
• Receiver Material: T6 7075 Hardened Aluminum
• Hand Guard: MLOK Aluminium 
• Color: Project Gray Cerakote
• Barrel: 4140 Full Steel Smooth Chrome Lined 18.5″
• Choke: Benelli Standard
• Stock: Carbon Fiber Adjustable Comb With Our Patended SHOCK FORCE Recoil System
• Ejector: Spring Assist Ejector
• Charging Handle: Advanced Oversized
• Trigger: Advanced Trigger
• Grip: Rubber Overmolded
• Sling Mounts: Front And Rear
• Cheek Pad: Adjustable
• Sights: Ghost Ring With Our patended FIBERTRON LED Fiberoptic Light Up front Sight
• Safety: Oversized Safety Switch
• Bolt Release: Large Enhanced Lever
• Overall Length: 40” (with stock collapsed)

Getting Your Hands On The Raider S4 Project Gray

Finding a shotgun that combines rugged durability, premium features, and superior ergonomics isn’t easy, but the Raider S4 Project Gray checks all the right boxes. From its oversized charging handle and bolt release to Orthos’ FIBERTRON LED fiber optic front sight, this firearm is built for fast, reliable operation. Plus, its adjustable cheek pad and rubber overmolded grip ensure maximum comfort for extended shooting sessions. And let’s not forget that lifetime warranty—a testament to the confidence behind this design. While it may be sold out now, that only speaks to its demand. If you’re serious about securing one, stay on top of restock notifications—because when it comes back, it won’t be available for long.