M4A1-S | Basilisk

M4A1-S | Basilisk released November 11, 2014 as part of the Operation Vanguard Weapon Case.

It originally released during the CS:GO era, before Valve's Counter-Strike 2 relaunch in September 2023 — its artwork, wear range, and source carried over unchanged into CS2.

It launched as a Restricted-tier finish, with both a StatTrak™ and a Souvenir edition.

As a finish, "Basilisk" is applied to the M4A1-S — the Counter-Terrorists' suppressed carbine, trading magazine size for reduced recoil and a quieter shot — and carries the purple rarity color every Restricted-tier skin shares on the Steam Market and in-game.

That Restricted classification places it in the middle of the rarity ladder — rarer than Mil-Spec Grade, but short of the Classified and Covert tiers above it.

M4A1-S | Basilisk ships in all five wear conditions, but its float is capped between 0.00 and 0.68 — narrower than the full 0.00–1.00 range some other skins allow.

As with every CS2 skin, lower float values look cleaner: Factory New copies (roughly below 0.07 float) show the finish at its sharpest, while Field-Tested and Well-Worn pieces make up the most commonly traded middle ground between mint and heavily worn.

M4A1-S | Basilisk comes from the Operation Vanguard Weapon Case — the Case is no longer part of the active drop pool, so trading and the Steam Community Market are the ways to acquire it today.

Valve's own published Case odds put a Restricted-tier pull like this one at roughly 1 in 25 (3.9950%).

There's both a StatTrak™ and a Souvenir edition of this finish, alongside the Normal version — three ways to own the same look, differing only in that badge.

Beyond that, there's no separate "phase" or pattern family tied to this finish in the site's data — it's tracked as a single fixed look across every wear condition it ships in.

As a Restricted-tier finish, M4A1-S | Basilisk sits among the more common pulls from the Operation Vanguard Weapon Case rather than being a chase item — a straightforward, affordable way to add a M4A1-S skin to a loadout or collection.

Its StatTrak™ and Souvenir editions tend to trade at a premium over the Normal version, the same pattern seen across most CS2 skins with that variant available.

M4A1-S | Basilisk has been part of the Operation Vanguard Weapon Case since November 11, 2014, and like every CS:GO-era CS2 skin, carried over unchanged when Valve relaunched the game on the Source 2 engine in 2023 — the artwork, wear range, and source Case/Collection are the same today as they were before the migration.

It's one of 4 Restricted-tier items in the Operation Vanguard Weapon Case, out of 14 items total.

This is one of 46 M4A1-S skins currently listed on the site, spanning multiple rarity tiers.