About the M4A1-S | Briefing
M4A1-S | Briefing is a Mil-Spec skin that drops from one of the 42 CS2 weapon cases, the Operation Hydra Case.
Valve released the Operation Hydra Case on 23 May 2017.
Each open has a 11.4171% chance (about 1 in 9) of pulling it, as one of 7 Mil-Spec finishes. One in ten of those drops is StatTrak.
It sits in tier 1 of 5 (Mil-Spec to Rare Special) and ranks #32 of 41 finishes in the Operation Hydra Case by top-wear Steam price.
Its Steam price runs from $3.74 to $70.65 across wears, against $40.86 to open the Operation Hydra Case (case plus $2.50 key), so 1 of its 5 priced wears are worth more than one open.
Cases that drop the M4A1-S | Briefing
Chance per open = Valve's Mil-Spec odds divided by the number of Mil-Spec finishes in that case. StatTrak versions drop 10% of the time. Open any of these free in the simulator: demo, nothing won. 18+.
| Case | Chance per open | About 1 in | StatTrak | Cost / open | Released |
|---|---|---|---|---|---|
| Operation Hydra Case1 of 7 Mil-Spec | 11.4171% | 9 | 1.14171% | $40.86 | 23 May 2017 |
M4A1-S | Briefing wears, float ranges and prices
Steam market 7-day average prices from 2026-10-03. Our item data has no per-skin float cap, so the standard 0.00 to 1.00 scale and the five wear bands are shown. A wear without a price had no recent sales or does not exist for this skin.
| Wear | Float range | Price | StatTrak |
|---|---|---|---|
| Factory New | 0.00 to 0.07 | $70.65 | $47.24 |
| Minimal Wear | 0.07 to 0.15 | $8.25 | $17.65 |
| Field-Tested | 0.15 to 0.38 | $4.99 | $10.76 |
| Well-Worn | 0.38 to 0.45 | $4.75 | $12.02 |
| Battle-Scarred | 0.45 to 1.00 | $3.74 | $10.56 |
M4A1-S | Briefing FAQ
What are the odds of getting the M4A1-S | Briefing?
11.4171% per Operation Hydra Case open (1 in 9). That is Valve's 79.92% Mil-Spec chance split evenly across the finishes in that tier. A StatTrak copy is one tenth of that, 1.14171% at best.
Which CS2 cases drop the M4A1-S | Briefing?
Only the Operation Hydra Case. The cheapest to open is the Operation Hydra Case at $40.86 including the key.
How much is the M4A1-S | Briefing worth?
Factory New $70.65, Minimal Wear $8.25, Field-Tested $4.99, Well-Worn $4.75, Battle-Scarred $3.74 on the Steam market (7-day average, 2026-10-03). StatTrak sells for $10.56 to $47.24.
Other Mil-Spec finishes in the Operation Hydra Case
All CS2 skins by rarity · Open the Operation Hydra Case in the simulator (demo, nothing won, 18+) · How CS2 case odds work
This is a free simulator for entertainment: a demo, nothing is won and no money is used. Odds are Valve's published odds; wear and Doppler phase splits are estimated models, not Valve figures. Item values are indicative Steam market prices. Counter-Strike 2 and its item images are property of Valve Corporation. CaseBattles is not affiliated with or endorsed by Valve. 18+ only. Responsible gaming.