--- title: "Orthos Raider S4 FDE 12 Gauge Shotgun" description: "Gas-operated semi-automatic 12 gauge shotgun with an 18.5\" chrome-lined barrel, 6+1 capacity, adjustable stock, M-LOK handguard, and Ghost Ring sights." canonical_url: "https://www.kygunco.com/product/orthos-s4rfde-raider-s4-12ga-fde-collapsible-stock-mlok" meta: author: KYGUNCO "og:description": "Gas-operated semi-automatic 12 gauge shotgun with an 18.5\" chrome-lined barrel, 6+1 capacity, adjustable stock, M-LOK handguard, and Ghost Ring sights." "og:image": "https://cdn.kygunco.com/assets/products/249528/thumbnail.jpg?v=1713457245" "og:image:height": "500" "og:image:width": "500" "og:title": "Orthos Raider S4 FDE 12 Gauge Shotgun" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Shotguns](https://www.kygunco.com/category/shooting/guns/shotguns) / [Semi-Auto](https://www.kygunco.com/category/shooting/guns/shotguns/semi-auto) / RTH-S4RFDE ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/249528/main.jpg?v=1713457245) For illustration purposes only, this image may not be an exact representation of the product. # ORTHOS Raider S4 Tactical 12 Gauge 3" 18.5" 6+1 Semi-Auto Shotgun - M-LOK | FDE The Orthos Raider S4 is a gas-operated semi-automatic 12 gauge shotgun with a 6+1 capacity, 18.5" chrome-lined smoothbore barrel, and 3" and 2 3/4" chambering. It features an adjustable stock with SHOCK FORCE recoil system, FDE Cerakote finish, M-LOK aluminum handguard, Picatinny top rail, Ghost Ring sights, and an adjustable cheek pad. See Price In Cart ** 5 interest-free payments of **$256.60** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$157.19**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Almost gone. Order now before it sells out. Item # 249528 Style RTH-S4RFDE UPC 850039520594 Condition New Manufacturer [Orthos](https://www.kygunco.com/brand/orthos) Model Raider S4 Hand Right Hand Finish FDE Round Capacity 6 Caliber 12 Gauge Action Semi-Auto Barrel Length 18.5 in The Raider S4 shotgun sports our patented SHOCK FORCE recoil system with the adjustable cheek pad so you can find the perfect fit, 40" long with collapsed stock. We have partnered with Black River Manufacturing to produce the furniture. Standard on the shotgun is the oversized charging handle and bolt release; angled three piece Modular Vertical Grip With M-LOK Rail grips; front and rear sling mounts; Ghost Ring sight with our patented FIBERTRON LED Fiber Optic Light Up front Sight; oversized safety switch; large enhanced lever bolt switch; advanced trigger; Spring Assist Ejector. Includes 6+1 magazine tube, Breacher choke tube, FIBERTRON LED Fiber Optic Light Up front Sight, adjustable stock w/SHOCK FORCE Recoil System and owners manual. - Capacity : 6+1 - 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 : FDE Cerakote - Barrel : 4140 Full Steel Smooth Chrome Lined 18.5" - Choke : Benelli Standard - Stock : Adjustable 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) - Weight : 9.5 lbs Shop with KYGUNCO for the best selection, competitive pricing, and exceptional customer service. Experience the difference that comes with buying from a trusted outdoor retailer with over 20 years of experience in the industry. ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/orthos-s4rfde-raider-s4-12ga-fde-collapsible-stock-mlok#webpage","@type":"WebPage","description":"Gas-operated semi-automatic 12 gauge shotgun with an 18.5\" chrome-lined barrel, 6+1 capacity, adjustable stock, M-LOK handguard, and Ghost Ring sights.","name":"Orthos Raider S4 FDE 12 Gauge 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