Bayonet Doppler phases
The Doppler has 7 versions, each with its own paint index: Phase 1, Phase 2, Phase 3 and Phase 4, plus Ruby, Sapphire and Black Pearl. Right now Phase 2 is the priciest numbered phase in Factory New and Phase 3 the cheapest. Valve doesn't publish phase odds, so the phase is only visible on the knife itself or on a phase-tagged listing.
| Version | Paint index | FN from | MW from | Listings |
|---|---|---|---|---|
| Phase 1 | 418 | $354.02 | $537.60 | 88 |
| Phase 2 | 419 | $427.34 | $555.20 | 61 |
| Phase 3 | 420 | $349.54 | $555.12 | 73 |
| Phase 4 | 421 | $360.46 | $483.39 | 63 |
| Ruby | 415 | $1,724 | $1,900 | 13 |
| Sapphire | 416 | $1,070 | $1,253 | 35 |
| Black Pearl | 417 | $2,179 | $4,481 | 9 |
Rare Bayonet Doppler patterns
Within a phase, the pattern seed decides how much of the blade shows the phase's best color. Collectors pay extra for the strongest examples: mostly-pink Phase 2s, mostly-blue Phase 4s and dark Phase 1s.
| Phase | Premium patterns | What collectors look for |
|---|---|---|
| Phase 1 | Dark seeds | A near-black playside that resembles a Black Pearl |
| Phase 2 | Max Pink seeds | Pink and purple across the blade, with little black |
| Phase 3 | Green and blue seeds | A strong green tone across the blade |
| Phase 4 | Max Blue seeds | Mostly blue, close to a Sapphire look |
Bayonet Doppler float and wear
The ★ Bayonet | Doppler's float runs from 0.00 to 0.08, which covers Factory New and Minimal Wear. Within such a narrow range the wear difference is barely visible, so phase and pattern matter far more than float.
Which cases drop the Bayonet Doppler?
The Bayonet | Doppler drops from 3 cases as a rare special item. In each case, any knife is 0.26% per opening and this finish in any phase is about 1 in 11,538, assuming every rare special item is equally likely.
| Case | Weekly drop pool | Chance per opening | Case price |
|---|---|---|---|
| Chroma Case | No longer drops | 0.009% · 1 in 11,538 | — |
| Chroma 2 Case | No longer drops | 0.009% · 1 in 11,538 | — |
| Chroma 3 Case | No longer drops | 0.009% · 1 in 11,538 | — |
About the Bayonet Doppler
The ★ Bayonet | Doppler was added in January 2015.
“Relatively unchanged in its design since World War II, the bayonet still retains a place in modern military strategy. Bayonet charges have continued to be effective as recently as the second Gulf War and the war in Afghanistan. It has been painted with black and silver metallic paints using a marbleizing medium, then candy coated.”
“Getting lost in its color can prove fatal”









