# Orthos Arms

## About

Orthos Arms sells tactical shotguns and is connected to Armsco, which also supplies the McCoy Arms line. Its Raider S4 is a gas-operated semi-automatic 12-gauge built as a Benelli M4 pattern gun, with a 6+1 capacity, an 18.5-inch chrome-lined 4140 steel barrel and a 7075 aluminium receiver, chambered for 2.75 and 3-inch shells. It uses the company's Shock Force recoil system, takes Benelli-style chokes, and comes with a carbon fibre magazine tube and cheek riser, a five-position adjustable stock, an aluminium M-LOK handguard and an illuminated fibre optic front sight. Finishes include black, FDE, grey, OD green, camouflage and Patriot Brown.

## Orthos Arms Products (8 total)

| Product | Caliber | Price |
|---------|---------|-------|
| [Orthos Arms Raider S4 12 Gauge 18.5in Alpine Elite](https://gunsnation.com/p/orthos-arms-raider-s4-12-gauge-18-5in-alpine-elite/UCExryeas) | 12 Gauge | - |
| [Orthos Arms Raider S4 12 Gauge 18.5in Camo](https://gunsnation.com/p/orthos-arms-raider-s4-12-gauge-18-5in-camo/UCExr5CTH) | 12 Gauge | - |
| [Orthos Arms Raider S4 Elite 12 Gauge 18.5in Patriot Brown](https://gunsnation.com/p/orthos-arms-raider-s4-elite-12-gauge-18-5in-patriot-brown/UCExryeaU) | 12 Gauge | - |
| [Orthos Arms Raider S4 Elite 12 Gauge 18.5in Green](https://gunsnation.com/p/orthos-arms-raider-s4-elite-12-gauge-18-5in-green/UCExryeay) | 12 Gauge | - |
| [Orthos Arms Raider S4 12 Gauge 18.5in Black](https://gunsnation.com/p/orthos-arms-raider-s4-12-gauge-18-5in-black/UCExr5CSB) | 12 Gauge | - |
| [Orthos Arms Raider S4 12 Gauge 18.5in FDE](https://gunsnation.com/p/orthos-arms-raider-s4-12-gauge-18-5in-fde/UCExr5CSI) | 12 Gauge | - |
| [Orthos Arms Raider S4 12 Gauge 18.5in Gray](https://gunsnation.com/p/orthos-arms-raider-s4-12-gauge-18-5in-gray/UCExr5CSO) | 12 Gauge | - |
| [Orthos Arms Raider S4 12 Gauge 18.5in OD Green](https://gunsnation.com/p/orthos-arms-raider-s4-12-gauge-18-5in-od-green/UCExr5CSf) | 12 Gauge | - |

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*Data from [GunsNation](https://gunsnation.com)*