M4A4 | Sheet Lightning

M4A4 | Sheet Lightning released March 31, 2025 as part of the Boreal Collection.

It's a Counter-Strike 2-native release, launched after Valve's September 2023 relaunch, with no CS:GO history of its own.

It launched as a Restricted-tier finish, with a Souvenir edition but no StatTrak™ version.

As a finish, "Sheet Lightning" is applied to the M4A4 — the Counter-Terrorists' standard assault rifle, with a larger magazine than the M4A1-S — 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.

M4A4 | Sheet Lightning ships in all five wear conditions, but its float is capped between 0.00 and 0.75 — 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.

M4A4 | Sheet Lightning is part of the Boreal Collection rather than being unboxed from a traditional weapon Case — the Collection is currently cycling through CS2's weekly Prime drop pool, so trade-ups and the Steam Community Market are the main ways to acquire one.

Valve has never published exact Collection odds. The estimate above (1 in 312, 0.3201%) applies the same rarity-tier cascade confirmed for Cases, giving a general sense of scale rather than a guaranteed rate.

Alongside the Normal version, this finish also has a Souvenir edition — there's no StatTrak™ counterpart.

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, M4A4 | Sheet Lightning sits among the more common pulls from the Boreal Collection rather than being a chase item — a straightforward, affordable way to add a M4A4 skin to a loadout or collection.

Its Souvenir edition tends to trade at a premium over the Normal version, the same pattern seen across most CS2 skins with that variant available.

M4A4 | Sheet Lightning has been part of the Boreal Collection since March 31, 2025 — a Counter-Strike 2-native release with no CS:GO-era version to compare it to.

It's one of 2 Restricted-tier items in the Boreal Collection, out of 29 items total.

This is one of 52 M4A4 skins currently listed on the site, spanning multiple rarity tiers.