M4A4 | Mainframe CS2 skin

M4A4 | Mainframe is a industrial grade rifle skin for the M4A4. It drops from the Copenhagen 2024 Nuke Souvenir Package.

The paint wears between 0 and 0.5, so you will find it in Factory New, Minimal Wear, Field-Tested, Well-Worn and Battle-Scarred.

Besides the normal finish, the skin comes in Souvenir form.

Right now the cheapest listing sits at $0.02 and the priciest variant at $15.00, across 5 marketplaces. The table below breaks that down by wear.

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
In-game description by Valve

Prices by wear

Wear CSFloat DMarket Skinport Steam Waxpeer Best Updated
Factory New FN $0.22 $0.25 $0.21 $0.33 $0.21 $0.21 Waxpeer 11 min ago
Minimal Wear MW $0.07 $0.13 $0.05 $0.12 $0.08 $0.05 Skinport 12 min ago
Field-Tested FT $0.03 $0.19 $0.03 $0.07 $0.05 $0.03 CSFloat 6 days ago
Well-Worn WW $0.06 $0.07 $0.03 - $0.06 $0.03 Skinport 12 min ago
Battle-Scarred BS $0.11 $0.14 $0.02 - $0.13 $0.02 Skinport 12 min ago
Wear CSFloat DMarket Skinport Steam Waxpeer Best Updated
Factory New FN $1.29 $1.23 $1.19 $2.22 $1.38 $1.19 Skinport 12 min ago
Minimal Wear MW $1.18 $0.71 $0.62 - $0.65 $0.62 Skinport 12 min ago
Field-Tested FT $0.22 $0.39 $0.21 - $0.31 $0.21 Skinport 12 min ago
Well-Worn WW $1.29 $15.00 $0.60 - $0.74 $0.60 Skinport 12 min ago
Battle-Scarred BS $0.70 $0.80 $2.54 - $4.30 $0.70 CSFloat 3 days ago

Lowest active listing per marketplace, as the price a buyer pays. Steam quotes what the seller receives, so its column has Steam's fee added back on, which is why cheap items look so much dearer there. A dash means nothing is listed in that condition at the moment. Trade holds and item float are not reflected here, so check the listing before you buy.

Price history

Cheapest listing for any wear of this skin, one reading a day across every marketplace listed here.

87 days -60.0%
$0.05 $0.04 $0.02 7 Aug 1 Nov
$0.02 lowest $0.05 highest $0.03 average

Details

Weapon M4A4
PatternMainframe
CategoryRifles
RarityIndustrial Grade
Collection The 2018 Nuke Collection
Found in Copenhagen 2024 Nuke Souvenir Package , London 2018 Nuke Souvenir Package , Antwerp 2022 Nuke Souvenir Package , Shanghai 2024 Nuke Souvenir Package
and 7 more Katowice 2019 Nuke Souvenir Package , Rio 2022 Nuke Souvenir Package , Austin 2025 Nuke Souvenir Package , Berlin 2019 Nuke Souvenir Package , Paris 2023 Nuke Souvenir Package , Budapest 2025 Nuke Souvenir Package , Stockholm 2021 Nuke Souvenir Package
ConditionsFactory New, Minimal Wear, Field-Tested, Well-Worn, Battle-Scarred
StatTrak No
Souvenir Yes
Paint index780
What the wear names and tags mean
Factory New (FN)
Float between 0.00 and 0.07. Paint is untouched, and this is where the price premium sits.
Minimal Wear (MW)
Float between 0.07 and 0.15. Light scuffing on edges, usually the sweet spot between looks and cost.
Field-Tested (FT)
Float between 0.15 and 0.38. Visible wear across the model. The most traded condition on most skins.
Well-Worn (WW)
Float between 0.38 and 0.45. Heavy fading, though on dark patterns the difference is hard to spot in game.
Battle-Scarred (BS)
Float between 0.45 and 1.00. The roughest finish, and normally the cheapest way into a skin.
Souvenir
Dropped to viewers during a Major. Carries team and player stickers from that match, which is why prices swing wildly between otherwise identical items.
Float
A number from 0 to 1 describing how worn the paint is. Lower is cleaner. Two items in the same condition can look different, and collectors pay extra for the extremes.
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