M4A4 (Mainframe) (Well-Worn) Inspect a WW copy in game
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M4A4 (Mainframe) (Well-Worn)

Industrial Grade Souvenir +50% · 9 d

M4A4 (Mainframe) (Well-Worn) is a Industrial-grade M4A4 skin in CS2. It drops from the London 2018 Nuke Souvenir Package.

Buy $0.026 BUFF163 Sell $0.039 DMarket
Steam $0.570 +2092% vs best Prices for Well-Worn, buyer fees included · 31 marketplaces compared below
Updated 3 d ago · how we price →

Item facts

RarityIndustrial GradeM4A4 Skins
CollectionThe 2018 Nuke Collection
Drops fromLondon 2018 Nuke Souvenir Packagecase from $17.95
Sold / day~2.0Kall markets
LiquidityHighhow fast it sells
Fair price$0.055suggested
22d range$0.02 – $0.03lowest ask, min–max
Steam spread$0.0204% · ask vs buy order
Steam sales 30d678avg 22.6 / day

M4A4 (Mainframe) (Well-Worn) prices across 15 markets

Selling this skin? See what you’d get →
Official
Steam Market
No cash-outBank card · PayPal
$0.570+2092% more than BUFF163
View
Best Price
BUFF163
China market48 offersKYC
$0.026−95% vs Steam
View Deal
#2
CSFloat
P2P27 offers
$0.030+$0.00
View Deal
#3
Skinport
Marketplace75 offersKYC
$0.030+$0.00
View Deal
#4
ECOSteam
China market55 offersKYC
$0.031+$0.01
View Deal
#5
WhiteMarket
P2P119 offersKYC
$0.040+$0.01
View Deal
#6
Tradeit
Instant sell20 offersKYC
$0.050+$0.02
View Deal
#7
CS.MONEY
Marketplace25 offersKYC
$0.060+$0.03
View Deal
#8
Haloskins
Marketplace97 offersKYC
$0.080+$0.05
View Deal

Each price is the total you pay, buyer fees included. The dot shows how well the venue fits your region. How we price →

Price history $0.026 +30% · 22d

Lowest ask · 11 snapshots since Jun 17, 2026 · dashed = a gap over a week

Same collection (The 2018 Nuke Collection): Acheron · Nuclear Garden · Cold Fusion · Control Panel · Facility Sketch · Bulkhead · All 18 items →

More from M4A4 Skins

All →
Popular 99%
M4A4 (Asiimov)
M4A4 (Asiimov)Covert
$85.8730 marketplaces
-1% · 9 d
Popular 86%
M4A4 (Bullet Rain)
M4A4 (Bullet Rain)Covert
$70.6930 marketplaces
-3% · 9 d
M4A4 (Daybreak)
M4A4 (Daybreak)Restricted
$448.9326 marketplaces
+3% · 9 d
M4A4 (Global Offensive)
M4A4 (Global Offensive)Mil-Spec
$15.4229 marketplaces
-15% · 9 d

M4A4 (Mainframe): design, wear and market

Trade-up position

This + 9 more Industrial Grade from The 2018 Nuke Collection craft into one of:

AWP (Acheron)MP5-SD (Co-Processor)P250 (Exchanger)P90 (Facility Negative)
Trade-up calculator →
Market read

Across 31 markets the WW floor moved +30% in 22 days: $0.020 → $0.026.

Cheapest venue vs Steam right now: $0.544 apart (95%).

Sources: Valve item data · our 31-market price snapshot.
How much does M4A4 (Mainframe) cost?

M4A4 (Mainframe) is listed from $0.026 on 31 marketplaces, every price with buyer fees in. Wear floors: FN $0.408 · MW $0.070 · FT $0.020 · WW $0.026 · BS $0.030. Steam asks $0.570 for the same listing.

Where can I sell or cash out M4A4 (Mainframe)?

The best net payout right now is $0.039 on DMarket after its seller fee — the Sell tab ranks every venue. Steam pays $0.550 into your wallet, but Steam funds cannot be withdrawn as real money.

Does M4A4 (Mainframe) come in StatTrak or Souvenir?

Yes: Souvenir (from $0.649) versions trade alongside the standard one. Switch with the Quality pills above and the whole page recalculates.

How do I get M4A4 (Mainframe)?

The drop source is London 2018 Nuke Souvenir Package, itself listed from $17.95; the direct market price starts at $0.026. Opening containers for one specific skin rarely beats buying it outright.