| Shotgun Choke I | Slightly reduces base dispersion. | Common | 640 | 0.25 kg | Modification |
| Shotgun Choke II | Moderately reduces base dispersion. | Uncommon | 2000 | 0.5 kg | Modification |
| Shotgun Choke II Blueprint | Lets you craft a Shotgun Choke II | Legendary | 5000 | - | Blueprint |
| Shotgun Choke III | Significantly reduces base dispersion. Compatible with: II Toro, Vulcano | Rare | 5000 | 0.75 kg | Modification |
| Shotgun Choke III Blueprint | Lets you craft a Shotgun Choke III | Legendary | 5000 | - | Blueprint |
| Shotgun Parts | Specialized components from shotgun-type weapons, used in crafting. | Rare | 700 | 0.4 kg | Material |
| Shotgun Parts Blueprint | Lets you craft Shotgun Parts | Legendary | 0 | - | Blueprint |
| Shotgun Silencer | Moderately reduces the amount of noise produced when firing. | Epic | 5000 | 0.5 kg | Mods |
| Shotgun Silencer Blueprint | Lets you craft a Shotgun Silencer. Moderately reduces the amount of noise produced when firing. | Legendary | 5000 | - | Blueprint |
| Showstopper | A grenade that detonates after a delay, stunning enemies within its radius. | Rare | 2200 | 0.4 kg | Throwable |
| Showstopper Blueprint | Lets you craft a Showstopper. | Legendary | 5000 | - | Blueprint |
| Shrapnel Grenade | A makeshift fuze grenade that bursts into razor-sharp fragments upon detonation. | Uncommon | 800 | 0.15 kg | Throwable |
| Shredder Gyro | Can be recycled into crafting materials. | Uncommon | 3000 | 1 kg | Recyclable |
| Signal Amplifier | Can be recycled into crafting materials. | Rare | 3000 | 1.5 kg | Recyclable |
| Silencer I | Slightly reduces the amount of noise produced when firing. | Uncommon | 0 | 0.25 kg | Modification |
| Silencer I Blueprint | Lets you craft a Silencer I | Legendary | 5000 | - | Blueprint |
| Silencer II | Moderately reduces the amount of noise produced when firing. Compatible with: Rattler, Ferro, Tempest, Arpeggio, Bettina. | Rare | 5000 | 0.5 kg | Modification |
| Silencer II Blueprint | Lets you craft a Silencer II | Legendary | 5000 | - | Blueprint |
| Silencer III | Significantly reduces the amount of noise produced when firing. | Epic | 7000 | 0.75 kg | Modification |
| Silencer III Blueprint | Lets you craft a Silencer III | Legendary | 5000 | - | Blueprint |
| Silver Teaspoon Set | A shining, shimmering set of refinement and elegance. | Rare | 3000 | 0.3 kg | Trinket |
| Simple Gun Parts | Used to craft weapons. Can be recycled into scrap metal. | Uncommon | 330 | 0.3 kg | Topside Material |
| Smoke Grenade | A grenade that creates a lingering smoke cloud on impact, blocking visibility from other Raiders. | Rare | 1000 | 0.2 kg | Quick Use |
| Smoke Grenade Blueprint | Lets you craft a Smoke Grenade | Legendary | 5000 | - | Blueprint |
| Snap Blast Grenade | A grenade that sticks to surfaces, dealing explosive damage after a short delay. | Uncommon | 800 | 0.2 kg | Quick Use |
| Snap Hook | A gadget that allows the user to scale structures and cover large distances. | Legendary | 14000 | 5 kg | Quick Use |
| Snap Hook Blueprint | Lets you craft a Snap Hook | Legendary | 5000 | - | Blueprint |
| Snitch Scanner | Gathered from ARC Snitches. Can be recycled into ARC Alloy. | Uncommon | 2000 | 0.75 kg | Recyclable |
| Snowball | A compact snowball fashioned out of the most malleable and aerodynamic snow. | Common | 10 | 0.2 kg | Nature |
| Spaceport Container Storage Key | Unlocks a door in the Container Storage in Spaceport | Uncommon | 100 | 0.25 kg | Key |
| Spaceport Control Tower Key | Unlocks a door to the Ground Control Tower in Spaceport | Rare | 100 | 0.25 kg | Key |
| Spaceport Outskirts Bunker Key | A makeshift key that lets you open the Outskirts Bunker on Spaceport | Rare | 100 | 0.01 kg | Key |
| Spaceport Trench Tower Key | Unlocks a door to the Trench Towers in Spaceport | Uncommon | 100 | 0.25 kg | Key |
| Spaceport Warehouse Key | Unlocks a door in the Shipping Warehouse in Spaceport | Uncommon | 100 | 0.25 kg | Key |
| Speaker Component | Used in crafting. | Rare | 500 | 0.3 kg | Topside Material |
| Spectrometer | Can be recycled into crafting materials | Rare | 3000 | 1.5 kg | Recyclable |
| Spectrum Analyzer | Can be recycled into crafting materials | Epic | 3500 | 1.5 kg | Recyclable |
| Spotter Relay | Can be recycled into crafting materials | Uncommon | 2000 | 1 kg | Recyclable |
| Spring Cushion | Can be recycled into crafting materials. | Rare | 2000 | 2 kg | Recyclable |
| Stable Stock I | Slightly improves dispersion & recoil recovery time. Compatible with: Rattler, Ferro, Arpeggio, Bettina, Kettle. | Common | 640 | 0.25 kg | Modification |