Core Eject Shotgun

Details

At 20 weight each it eats carry capacity fast, so bring a mount or park a chest nearby. At 736,030 gold it is worth real money to a merchant.

Core Eject Shotgun Crafting Recipe

Pal Metal Ingot×160

Plasteel×130

Carbon Fiber×64

Flame Organ×80

Ancient Civilization Parts×8

What it really costs, once every sub-recipe is expanded

Ore×1,290Wood×640Paldium Fragment×320Crude Oil×260Pure Quartz×160Flame Organ×144Ancient Civilization Parts×8

Crafting it takes 442 materials across 5 types.

Where to Find Core Eject Shotgun

Core Eject Shotgun is not something you find lying around — you craft it, and the recipe is below.

You do not have to grind the fusion ladder at all — the Arena Shop stocks Core Eject Shotgun Schematic 4 outright for 1300 Battle Ticket, and the stock is permanent rather than a rotating slot. That makes this one of the few Legendary schematics with a fixed, guaranteed price instead of a drop chance, so tickets earned in arena runs convert straight into the top tier. Worth pricing against the alternative: 125 Schematic 1s fused five-to-one gets you the same paper. The Legendary revolver schematic sits on the same counter at the same 1300, so buying both halves of the core-detonation pairing costs 2600 tickets in total.

Two separate gates stand between you and this build, and the recipe list above only shows the second one. The family is unlocked by the ULTRAKILL Collab Set 2 technology at level 56, and it costs 5 ancient technology points rather than ordinary ones — the currency you get from tower bosses and statues, not from levelling. That purchase puts the base Core Eject Shotgun on the bench. The Legendary build stays hidden until Core Eject Shotgun Schematic 4 is in your own inventory; a copy sitting in a base chest does nothing. Schematics fuse five-to-one up the ladder at the drafting table, so if you are starting from the bottom tier that is 125 Schematic 1s for one Schematic 4.

Using Core Eject Shotgun Well

The materials are not the expensive part of this craft — the labour is. The Legendary version carries 32 times the work of the base shotgun, and five times that of the Legendary Marksman Revolver, which is the single heaviest weapon craft in the collab set by a wide margin. Load the assembly line with your best handiwork crew and expect it to occupy them for a long stretch; starting it and wandering off to gather is the right order of operations, not the reverse.

The core-detonation combo needs both halves of the collab bought, not just this one: the revolver rides on ULTRAKILL Collab Set 1 at level 32 for 3 ancient points, so the full pairing runs you 8 ancient points across two techs. Budget for that before you spend, because the shotgun alone cannot set off the cores it ejects. Note also which half wears out first — this weapon's durability pool is a quarter of the Legendary revolver's, so the revolver stays your reliable detonator through a long fight while the shotgun is the piece you will be repairing between runs.

Climbing the schematic ladder buys less than the tier names suggest. Across the five versions the attack goes 230, 402, 460, 517, 575 — the first schematic you find is worth more than the next three combined, and the jump from Schematic 3 to Schematic 4 is about 11 per cent. Durability scales harder than damage does across the same steps, so the case for chasing the top tier is uptime between repairs rather than raw hitting power.

Every Tier of Core Eject Shotgun

The same piece exists at 5 rarities, and the gap is not cosmetic: attack runs 230 to 575, a 2.5x swing. Which one you end up with is decided by the rarity of the schematic you built from, not by the recipe — so a legendary copy of this is worth more than the next item up built from a common one.

Ammunition Core Eject Shotgun Uses

Core Eject Shotgun fires Shotgun Shell, and nothing else — running dry mid-fight is the usual way this weapon lets you down, so keep the recipe unlocked before you rely on it.

Ammo	Yield	Craft cost
Shotgun Shell	×10	Refined Ingot ×2, Gunpowder ×3

Schematics That Unlock Core Eject Shotgun

The Technology tree hands you the plain Core Eject Shotgun at level 56 for 5 Ancient Technology points, but nothing above that base version — the rarer builds are schematic-only. One schematic grants the recipe, and they are world loot — chests, boss Pals and the late-game pools — rather than anything you research. Higher-rarity copies of the same schematic raise the quality of what you end up crafting.

Schematic	Rarity	Where it comes from
Core Eject Shotgun Schematic 4	4★	Arena Shop — 1300 Battle Ticket

Alternatives and Upgrades

Beam Scatter sits just above it at 584 attack — only 9 more, close enough that it is a sidegrade rather than an upgrade. The next real step is Beam Scatter at 609; below it is Beam Scatter at 558.

Beam Scatter584Beam Scatter558

Other shotguns at a similar tier, for when you want to weigh this against the rest of its class:

Semi-Auto ShotgunPump-Action ShotgunDouble-Barreled ShotgunMakeshift ShotgunCore Eject ShotgunSemi-Auto ShotgunPump-Action ShotgunDouble-Barreled ShotgunMakeshift ShotgunCore Eject ShotgunSemi-Auto ShotgunPump-Action Shotgun