Mainframe

Float range0.00 to 0.50

More accurate but less damaging than its AK-47 counterpart, the M4A4 is the full-auto assault rifle of choice for CTs. A black and white circuit board pattern has been applied. At the heart of it all

Prices

Showing prices from the last 3 days.

Price history

Lowest CSFloat listing, averaged over each day.

Found In

The 2018 Nuke Collection

London 2018 Nuke Souvenir Package

Katowice 2019 Nuke Souvenir Package

Berlin 2019 Nuke Souvenir Package

Stockholm 2021 Nuke Souvenir Package

Antwerp 2022 Nuke Souvenir Package

Rio 2022 Nuke Souvenir Package

Paris 2023 Nuke Souvenir Package

Copenhagen 2024 Nuke Souvenir Package

Shanghai 2024 Nuke Souvenir Package

Austin 2025 Nuke Souvenir Package

Budapest 2025 Nuke Souvenir Package

Trade-up Contracts

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Discover contracts where M4A4 | Mainframe can be used as an input

All M4A4 skins All Mainframe skins All Industrial Grade skins

Trade Ups with M4A4 | Mainframe

As input: 10x M4A4 | Mainframe into a Mil-Spec Grade from The 2018 Nuke Collection

A full input set of 10 starts at about $0.30, based on 10x this skin's lowest listed price.

AWP | Acheron25% chance · from $0.65
MP5-SD | Co-Processor25% chance · from $0.21
P250 | Exchanger25% chance · from $0.13
P90 | Facility Negative25% chance · from $0.13

As outcome: trade up to M4A4 | Mainframe from The 2018 Nuke Collection

10 Consumer Grade skins from this collection give a 25% chance at this skin. Input sets start at about $0.30 (10x the lowest listed input price).

Target wear	Avg. normalized input float
Factory New	0.0000 to <0.1400
Minimal Wear	0.1400 to <0.3000
Field-Tested	0.3000 to <0.7600
Well-Worn	0.7600 to <0.9000
Battle-Scarred	0.9000 to 1.0000

The game scales each input float within that skin's own float range before averaging. For inputs with a full 0 to 1 range, normalized and raw floats are identical. Upper bounds are exclusive: an average exactly on a bound already produces the next wear.

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Related Skins

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UMP-45 Facility Dark

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$0.03

PP-Bizon Facility Sketch

Rifle skin prices as a wholeRifles index: 5,838.72-13.3%in 30 days

Mainframe

Prices

Price history

Found In

Trade-up Contracts

Related

Trade Ups with M4A4 | Mainframe

As input: 10x M4A4 | Mainframe into a Mil-Spec Grade from The 2018 Nuke Collection

As outcome: trade up to M4A4 | Mainframe from The 2018 Nuke Collection

Related Skins

More from The 2018 Nuke Collection

Trade Ups with M4A4 | Mainframe

As input: 10x M4A4 | Mainframe into a Mil-Spec Grade from The 2018 Nuke Collection

As outcome: trade up to M4A4 | Mainframe from The 2018 Nuke Collection

Related Skins

More from The 2018 Nuke Collection

More M4A4 skins