ARC Raiders 
If you’re on the hunt for ARC Raiders Sentinel Firing Cores, you’ve got two main routes: grind them out in-game or buy them from a fellow player. Grinding is RNG-heavy and eats a ton of time, as you’ll need countless Sentinel Firings Cores for lots of things.
Buying from a trusted marketplace like Eldorado.gg is way faster and skips the pain, but costs a buck or two.
What is an ARC Raiders Sentinel Firing Core, and why do you need it
Sentinel Firing Cores are rare crafting drops, mostly from Sentinel ARC turrets. You need four just to upgrade your Gunsmith to tier three, which upgrades weapons and recipes.
No cores means being stuck with low-tier gear while the competition gets ahead. They’re rare drops, and farming them could become a grind.
Sentinel Firing Cores farming
Sentinel ARC kills
The OG way to get Sentinel Firing Cores? Drop Sentinel ARC turrets. These are sniper-style turrets often stuck to ceilings in very specific spots. Don’t confuse them with standard turret mobs.
Sentinel turret drops a single core
Dam Battlegrounds is the meta map for farming. Spawn close to Couriers and the Research & Administration zone. The best spawn is at the corner of the Dam Control Tower Administration building, near the blue stairs. Snipe the Sentinel from range, but be ready to loot the lower floor if the core drops down.
If that one’s missing, hit the breach in the dam wall. Up to two Sentinels can pop there.
Sentinel turret spawns on Dam Battlegrounds
Best farming locations
- Buried City: check the main plaza, Sentinel perched in a tower.
- Blue Gate: one in the map center, another on the north edge.
- Spaceport: sentinels scattered across hangars and catwalks.
Night Raids crank up the ARC spawn rate, including Sentinels. If you want more action (and more loot RNG), run at night.
Looting ARC Courier husks
Don’t sleep on ARC Courier husks. These big, chest-like containers can drop Sentinel Firing Cores, too
- They’re safer: no turret fight, just loot and scoot.
- Find couriers around Research & Administration on Dam Battlegrounds, north Swamp Outpost, and southwest The Breach.
- Couriers are marked on your map, so you can plan efficient loot runs.
Looting an ARC Courier husk
SIDE NOTE: Have you ever wondered if ARC Raiders is in the same universe as The Finals?
Dam Battlegrounds route example
Here’s a no-nonsense route:
- Start in Dam Battlegrounds.
- Check the R&A blue stairs corner for a Sentinel: snipe and loot.
- Hit the dam breach for 1-2 more Sentinels.
- While moving, scan for courier husk clusters (loot every one).
- Repeat the loop.
NOTE: Always use Safe Pocket (via augment) to stash your cores ASAP. If you get clapped, you keep your loot. Extract once you’ve got your haul.
Risks and frustrations of grinding
Farming Sentinel Firing Cores takes patience (and maybe a rage-proof mouse).
- Low drop rates: not every Sentinel drops a core.
- Bugs and glitches: husks sometimes vanish or fall through the map, especially near stairs or walls.
- Hot zones: popular Sentinel spots are camped hard. You might get there and find the turret gone or get third-partyed while looting.
- Time sink: even on a good day, expect three or four full runs to get your four cores.
Buy Sentinel Firing Cores: safe shortcut
Not in the mood to gamble with your time? Buying Sentinel Firing Cores for a dollar or two is a legit shortcut. A trusted marketplace like Eldorado.gg connects you with verified sellers, so you can skip the grind.
Stock up on Sentinel Firing Cores on Eldorado.gg and free up your gaming hours for more impactful plays.
Eldorado.gg uses escrow, so your payment is released only after you confirm delivery. The following should put you at ease:
- Dispute system.
- Verified sellers.
- 24/7 support.
- Money-back guarantee.
Sentinel Firing Cores on Eldorado.gg
Buying or grinding?
It just depends on your priorities: time or cash.
- Grind: If you get a kick out of loot runs, don’t mind RNG, and don’t mind putting in the hours, hit the Dam Battlegrounds and focus on courier husks first for safe, low-stress farming.
- Buy: If you’re tired of bugged drops, need to upgrade NOW, or just want to get back to blasting with upgraded gear, buying from a trusted marketplace is the way to go.
