Details
- Weapon
- M4A1-S
- Float range
- 0.00 – 0.08
- Category
- Rifles
- Paint index
- 1017
- Legacy model
- No
- Pattern
- Blue Phosphor
- Side
- Counter-Terrorists
- Trade-up contracts
- Not eligible
No higher rarity exists in this collection to trade up into.
Colours
Dark Blue 75%
Black 18%
Other 7%
Market activity
- Liquidity
- 51 / 100
- Fair
- Popularity
- 48 / 100
- Fair
Demand 67
Cost to sell 38
Speed to sell 32
Market supply 20
Sales velocity 31
Steam order book
C tier liquidity- Highest buy order
- $531.04
- Lowest sell listing
- $651.81
- Spread
- $120.7718.53%
1.8k buy orders 26 sell listings
Where it comes from
Renders
Factory New
Game files
The textures CS2 builds this skin from, extracted from the game files.
Anodized — pattern + paletteA base pattern recoloured by the palette below — same design, different colours.
Palette
Classified 
The Control Collection
The Control CollectionM4A1-S Blue Phosphor (Factory New)
Factory New
- Median
- $465.87
- 24 hours
- −0.5%
-
- 7 days
- −0.6%
-
- 30 days
- −11.9%
-
3,275 listings across all markets
Not usable in trade-up contracts.
Marketsfor M4A1-S | Blue Phosphor (Factory New)
19 with a price
CSFloat Lowest934 listed $442.00 Buy
SkinSell60 listed $450.81 Buy
BUFF163332 listed $450.90 Buy
CSBoard749 listed $464.33 Buy
HaloSkins146 listed $465.87 Buy
Skins.com21 listed $467.39 Buy
LIS-SKINS210 listed $468.84 Buy
Skin.Land207 listed $469.30 Buy
23 markets without a price
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Price historyof M4A1-S | Blue Phosphor
$465.87
−11.7% over 30D·median across markets
Oct 1, 2026 Oct 31, 2026
Price by float
The lowest price you can buy at, across markets, for each float. Jumps at the wear boundaries are real.
$463.22
cheapest at float 0.0200 · typical $513.84–$703.42 · 33 listings on 6 markets nearby
0.000.020.050.07
Cheapest Middle half of listings Median
| Float range | Lowest price | Listings |
|---|---|---|
| FN <0.02 | $463.22 | |
| 0.02 – 0.03 | $471.33 | |
| 0.03 – 0.04 | $474.14 | |
| 0.04 – 0.05 | $482.78 | |
| 0.05 – 0.06 | $508.88 | |
| 0.06 – 0.07 | $485.13 |
In short
Origin
The M4A1-S | Blue Phosphor is part of the The Control Collection collection.
Rarity
The M4A1-S | Blue Phosphor has a Classified rarity and is categorised as Rifles.
Availability
The cheapest M4A1-S | Blue Phosphor (Factory New) is $442.00 on CSFloat, with prices across 19 markets ranging up to $727.27.
Price trend
Over the last 30 days the cross-market median price of the M4A1-S | Blue Phosphor (Factory New) went from $527.72 to $465.87 (−11.7%), with a low of $459.11 on Oct 19 and a high of $527.72 on Oct 2. That is −0.3% over the last 7 days. On the Steam Community Market the highest buy order is $531.04 and the lowest listing is $651.81 (1,781 buy orders, 26 listings).
Versions
The float value ranges from 0.00 to 0.08, available in 2 wear conditions. It also has a Souvenir version.
Finish Style
This M4A1-S features the Blue Phosphor design.
Guides
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M4A1-S | Blue Phosphor — Frequently Asked Questions
How much does the M4A1-S | Blue Phosphor (Factory New) cost?
As of Oct 2026, the cheapest M4A1-S | Blue Phosphor (Factory New) costs $442.00 on CSFloat. CSSkinLab compares live prices across 19 CS2 marketplaces so you always see the cheapest offer first.
What is the float range of the M4A1-S | Blue Phosphor (Factory New)?
The M4A1-S | Blue Phosphor (Factory New) has a float range of 0.00 – 0.08. Lower floats mean less visible wear on the skin. The M4A1-S | Blue Phosphor exists in 2 wear tiers: Factory New and Minimal Wear.
Does the M4A1-S | Blue Phosphor come in StatTrak™ or Souvenir?
The M4A1-S | Blue Phosphor also drops as a Souvenir version from tournament packages, but it does not exist in StatTrak™.
Can I use the M4A1-S | Blue Phosphor (Factory New) in a trade-up?
No, the M4A1-S | Blue Phosphor (Factory New) cannot be used in a trade-up contract. NO_NEXT_RARITY
Where does the M4A1-S | Blue Phosphor drop from?
It belongs to the The Control Collection. You can also buy it directly from community marketplaces, usually for less than the cost of opening cases.
What rarity is the M4A1-S | Blue Phosphor?
The M4A1-S | Blue Phosphor is a Classified rarity skin. Rarity determines how often it drops and which trade-up contracts it fits into.