Epic Edition weapons or formerly known as the Flex Weapons are the limited weapons that are available in the final stage of Epic Fragment event. They can only be obtained once per account and cannot be traded.
USAS-12 Thunderfall[]
- Main article: USAS-12 Thunderfall

A weapon based on the Daewoo USAS-12 developed by the Aegis Institute, using 40 12-gauge shotgun rounds. When hitting an enemy a certain number of times with a basic attack, lightning strikes. When the special bullet collides with an enemy or wall, it explodes and strikes a certain number of targets within the blast radius.
Abyss Repulsor[]
- Main article: Abyss Repulsor

An over-technology weapon modified from Kronos that uses anti-gravity technology. It fires anti-gravity bullets that deal area damage to the target location and creates waves around the player to protect the user. It can jump and glide into the air using anti-gravity energy that is automatically charged, and can also quickly dive vertically while gliding.
Firefox[]
- Main article: Firefox

A submachine gun imbued with the spirit of a fire fox that charms enemies. In zombie mode, it activates the assist function for enemies within a certain distance. In zombie mode and zombie scenario mode, it automatically burns nearby enemies.
OICW Hellfire[]
- Main article: OICW Hellfire

An OICW that appears to looks as if it was smelted in a smithy of hell. Destroys the battlefield with endless series of explosions targeting zombies.
M134 Minigun Umbra[]
- Main article: M134 Minigun Umbra

This powerful minigun is chambered for 300 rounds of 7.62mm and is possessed by the specter of a prolific special force member from the past. The specter appears in the form of a shadow soldier as you defeat enemies, firing with a pinpoint precision before vanishing.
M3 Azhi Dahaka[]
- Main article: M3 Azhi Dahaka

A shotgun imbued with the soul of a demonic dragon. Its basic attack is accompanied by dragon breath, which can be used to unleash a <Dragon Burst> on a marked target, and <Dragon Rising>, which summons the dragon to fight alongside you.
Hécate II Umbra[]
- Main article: Hecate II Umbra

This powerful bolt action sniper rifle is chambered for 20 rounds of .50 BMG and is possessed by the specter of a prolific special force member from the past. The specter appears in the form of a shadow soldier as you defeat enemies, firing with a pinpoint precision before vanishing.
Gigantic Drill[]
- Main article: Gigantic Drill

A customizable weapon for the Magnum Drill. It pours out 50 4-gauge shotgun bullets or pierces and crushes the enemy using the 2nd mode giant drill. Equipped as a main weapon, the knockback effect is in Zombie and Scenario modes only.
Psychic Sizer[]
- Main article: Psychic Sizer

This is a customized weapon of Psychic Harmonium, a sonic weapon produced by Gunsmith. It can use sonic shot attack using sonic energy and sonic pulse, which is an all-round attack, and combines special commands. By doing so, new and powerful potentials can be used.
Astra[]
- Main article: Astra

A weapon specialized for hunting zombies produced by the Aegis Lab. After the projectile flies through a certain distance, it returns to the user again. At this time, if the Astra is still out when it returned, the projectile is recovered; otherwise, it will be destroyed. Projectiles can be fired one more time before being retrieved. Scoring a headshot deals prolonged damage and also strikes nearby enemies.
Thunder Force[]
- Main article: Thunder Force

A weapon made of a lightweight alloy created by a private sector directed-energy lab that researches lasers. Equipped with a feature that automatically attacks enemies with infinite energy bolts.
Inferno Cannon[]
- Main article: Inferno Cannon

A shotgun that rapidly fires 45 rounds of 12 gauge shotgun ammo. Its special feature, Infernal Flame, allows it to shoot fireballs.
Scorching Auto-Shotgun[]
- Main article: Scorching Auto-Shotgun

A customized version of the Hunter-Killer shotgun, a 30-round 12 Gauge shotgun developed by Kronos. The Hunter-Killer Module allows you to use Tactical Scanning in full auto mode, marking zombies after landing enough hits on them.
Trivia[]
- Scorching Auto-Shotgun is the first Epic Edition weapon, also the only Epic Edition weapon that isn't transcendent grade (is unique grade instead) and the only unique grade that has hit-markers feature found in the transcendence series.
- They were originally available in the Epic FLEX Box until the release of Thunder Force, which starting with that weapon, it has to be bought from the corresponding Epic Fragment store (Epic Flex Package) along with it's corresponding Epic during the sale.
These weapons are not available in VVIP and Hero store in Counter-Strike Nexon: Studio with the exception of Thunder Force and Psychic Sizer, however, they are available in other CSO region VVIP and Hero stores.This bug has been fixed.- Most Epic Edition weapons were based in older Lunar New Year weapons.
- Psychic Sizer is the first Epic edition weapon to be based in a limited transcendence weapon instead of a Lunar New Year weapon.