Home / Products / Orthos Arms / Orthos Raider S4 Competition Highland Elite 12 GA 18.5 XL Ambi Enlarged Port Fluted Bolt Camo Shotgun
Orthos Raider S4 Competition Highland Elite 12 GA 18.5 XL Ambi Enlarged Port Fluted Bolt Camo Shotgun
Lowest Price
Price unavailable
MSRP
$1,999.99
Savings
No verified offer
Verified In Stock at
0 Stores
Updated
Aug 26, 2026
Compare Deals from 1 Retailers
Verified availability, then price
Specifications
Description
Raider S4 Competition Highland Elite 12 Gauge Shotgun18.5" Chrome-Lined Barrel - XL Ambi Charging Handle - Enlarged Loading Port - Highland Camo The Raider S4 shotgun has been years in the making. 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 perfect fit. 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. FIBERTRON LED front sight features a small LED providing 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. This is the competition model that has features not available on the standard elite models that are geared towards competition. Features 12 gauge gas operated semi-automatic action, 18.5" 4140 full steel smooth chrome-lined barrel, Benelli standard choke (breacher choke included), T6 7075 hardened aluminum receiver, M-LOK aluminum handguard, angled 3-piece modular vertical grip with MLOK rail grips, top-mounted Picatinny rail, carbon fiber adjustable comb stock with patented SHOCK FORCE recoil system, ghost ring rear sight with patented FIBERTRON LED fiber optic light-up front sight, spring assist ejector, advanced trigger, rubber overmolded grip, oversized safety switch, large enhanced bolt release lever, adjustable cheek pad, combat sling with front and rear mounts, Highland Camo Cerakote finish. Competition features: XL ambidextrous charging handle, enlarged loading port for fast loading, QD mount on left side of receiver, fluted bolt. 6+1 capacity (3" shells) / 7+1 capacity (2-3/4" shells). Overall length 40" (stock collapsed). Weight 9.5 lbs. SKU: S4RCHE. Lifetime warranty. Ammo recommendation: 1250 FPS or higher. Break-in period: 50 rounds of high brass heavy loads (1300 FPS or higher).Competition-Specific FeaturesThis is the competition model that has features not available on the standard elite models that are geared towards competition: XL ambidextrous charging handle for positive manipulation from either side, enlarged loading port for fast loading during stages, QD mount on left side of receiver for rapid sling attachment, and fluted bolt for weight reduction and enhanced cycling.XL Ambidextrous Charging HandleXL ambidextrous charging handle provides oversized controls accessible from both sides. The extra-large ambi design enables fast manipulation regardless of shooting position or hand preference during competition stages.Enlarged Loading PortEnlarged loading port enables fast loading during competition. The widened port accommodates rapid quad-loading techniques for faster stage times and reload speed.Fluted BoltFluted bolt reduces reciprocating weight while maintaining structural integrity. The fluted design enhances cycling speed and reduces felt recoil for faster follow-up shots.QD Sling MountQD mount on left side of receiver enables rapid sling attachment and detachment. The quick-detach system facilitates fast transitions between shooting and movement during competition.Patented SHOCK FORCE Recoil SystemPatented 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 advanced recoil reduction enables extended competition sessions without fatigue.Patented FIBERTRON LED Front SightFIBERTRON LED front sight features a small LED providing subtle glow to the fiber optic front sight which provides unparalleled target acquisition. The illuminated fiber optic enhances visibility in low-light stages for faster sight alignment.Carbon Fiber Adjustable StockCarbon fiber adjustable comb stock with patented SHOCK FORCE recoil system and adjustable cheek pad enables finding the perfect fit. The carbon fiber construction provides lightweight strength while the adjustable features accommodate diverse shooters.18.5" Chrome-Lined Barrel18.5" 4140 full steel smooth chrome-lined barrel with Benelli standard choke threading. The chrome lining provides corrosion resistance and easy cleaning while the smooth bore accommodates slugs and shot. Breacher choke tube included.T6 7075 Hardened Aluminum ReceiverT6 7075 hardened aluminum receiver provides lightweight strength. The aircraft-grade aluminum construction balances durability with reduced weight for comfortable carry during competition stages.M-LOK Handguard with Modular GripM-LOK aluminum handguard with angled 3-piece modular vertical grip and MLOK rail grips enables accessory mounting. The modular design accommodates lights, lasers, and grips for competition customization.Ghost Ring SightsGhost ring rear sight paired with FIBERTRON LED front sight provides rapid target acquisition. The ghost ring design enables fast alignment while the illuminated front sight ensures visibility across diverse stage lighting.Highland Camo Cerakote FinishHighland Camo Cerakote finish provides distinctive terrain camouflage pattern with superior durability and corrosion resistance. The Highland pattern offers versatile concealment for diverse environments.Black River Manufacturing FurniturePartnered with Black River Manufacturing to produce the furniture. The premium furniture provides quality construction and refined ergonomics for competition performance.Break-In and Ammo RecommendationsAmmo recommendation: Any brand ammo as long as it has 1250 FPS or higher for guaranteed consistent cycling. Break-in period: 50 rounds of high brass heavy loads (1300 FPS or higher). Clean factory oil and apply reputable gun oil before break-in. The Raider S4 Competition Highland Elite delivers competition dominance-XL ambi controls with enlarged port in Highland Camo for 3-gun performance.SPECIFICATIONSManufacturer: RaiderModel: S4 Competition Highland EliteSKU: S4RCHEType: Competition ModelGauge: 12 GaugeAction: Gas Operated Semi-AutomaticChamber: 3", 2-3/4"Ammunition: 3", 2-3/4"Barrel Length: 18.5 inchesBarrel Material: 4140 Full SteelBarrel Finish: Chrome Lined (Smooth Bore)Choke: Benelli Standard ThreadingReceiver Material: T6 7075 Hardened AluminumHandguard: M-LOK AluminumGrip: Angled 3-Piece Modular Vertical Grip with MLOK Rail Grips, Rubber OvermoldedTop Rail: Top-Mounted Picatinny RailStock: Carbon Fiber Adjustable Comb with Patented SHOCK FORCE Recoil SystemCheek Pad: AdjustableFront Sight: Patented FIBERTRON LED Fiber Optic Light-UpRear Sight: Ghost RingCharging Handle: XL Ambidextrous (Competition Exclusive)Loading Port: Enlarged for Fast Loading (Competition Exclusive)Bolt: Fluted (Competition Exclusive)Sling Mount: QD Mount on Left Side of Receiver (Competition Exclusive)Bolt Release: Large Enhanced LeverEjector: Spring AssistTrigger: Advanced TriggerSafety: Oversized Safety SwitchSling: Combat Sling with Front and Rear MountsCapacity: 6+1 (3" shells), 7+1 (2-3/4" shells)Overall Length: 40 inches (stock collapsed)Weight: 9.5 lbsFinish: Highland Camo CerakoteIncluded: Shotgun, Combat Sling, Magazine Tube, Breacher Choke Tube, FIBERTRON LED Sight, Owner's ManualWarranty: LifetimeAmmo Recommendation: 1250 FPS or higher for consistent cyclingBreak-In: 50 rounds high brass heavy loads (1300 FPS or higher)Furniture Partner: Black River Manufacturing
