Corvus LVL-40 attachment in MW4
The Corvus LVL-40 is a muzzle attachment (“Horizontal Comp”) that community sites list for 5 weapons: Han 86, M4, Hyeon Burst, Axion, and FiNN LMG. CODMunity lists a stat change on 5 of them; the largest is horizontal recoil −25% on the Han 86 (better). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the Corvus LVL-40
Activision publishes no compatibility list; 2 community sources report these 5 weapons. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Han 86 | Assault Rifle | horizontal gun kick (large, better), horizontal recoil (large, better), ADS speed (small, worse), and ADS out speed (small, worse) | |
| M4 | Assault Rifle | horizontal gun kick (large, better), horizontal recoil (large, better), ADS speed (small, worse), and ADS out speed (small, worse) | |
| Hyeon Burst | Assault Rifle | horizontal gun kick (large, better), horizontal recoil (large, better), ADS speed (small, worse), and ADS out speed (small, worse) | |
| Axion | Assault Rifle | horizontal gun kick (large, better), horizontal recoil (large, better), ADS speed (small, worse), and ADS out speed (small, worse) | |
| FiNN LMG | LMG | horizontal gun kick (large, better), horizontal recoil (large, better), ADS speed (small, worse), and ADS out speed (small, worse) |
What the Corvus LVL-40 changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Han 86 | Horizontal recoil | 11.2 | 8.4 | −25% (better) |
| ADS speed | 250 ms | 263 ms | +5% (worse) | |
| M4 | Horizontal recoil | 17.1 | 12.8 | −25% (better) |
| ADS speed | 240 ms | 252 ms | +5% (worse) | |
| Hyeon Burst | Horizontal recoil | 16.4 | 12.3 | −25% (better) |
| ADS speed | 275 ms | 286 ms | +4% (worse) | |
| Axion | Horizontal recoil | 13.7 | 10.3 | −25% (better) |
| ADS speed | 260 ms | 273 ms | +5% (worse) | |
| FiNN LMG | Horizontal recoil | 17.3 | 13.0 | −25% (better) |
| ADS speed | 400 ms | 412 ms | +3% (worse) |
Smaller changes are left out of the table: 2 other stats on the Han 86, 2 other stats on the M4, 2 other stats on the Hyeon Burst, 2 other stats on the Axion, and 2 other stats on the FiNN LMG.
Changes across weapons
The stats it changes on 5 weapons, with the lowest and highest change.
| Stat | Weapons | Lowest change | Highest change | Verdicts |
|---|---|---|---|---|
| Horizontal recoil | 5 | −25% | −25% | 5 better, 0 worse |
| ADS speed | 5 | +3% | +5% | 0 better, 5 worse |
| Horizontal gun kick | 5 | −30% | −30% | 5 better, 0 worse |
| ADS out speed | 5 | +3% | +4% | 0 better, 5 worse |
How it ranks among muzzle attachments
Its largest change on each weapon, compared with the other muzzle attachments the source lists that stat for.
- Han 86: its large horizontal recoil change (better) is the best of 4 muzzle attachments.
- M4: its large horizontal recoil change (better) is the best of 4 muzzle attachments.
- Hyeon Burst: its large horizontal recoil change (better) is the best of 4 muzzle attachments.
- Axion: its large horizontal recoil change (better) is the best of 4 muzzle attachments.
- FiNN LMG: its large horizontal recoil change (better) is the best of 5 muzzle attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the Corvus LVL-40
No popular build listed by CODMunity uses the Corvus LVL-40. That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the Corvus LVL-40 do in MW4?
CODMunity lists 20 stat changes for it across 5 weapons: 10 better and 10 worse. The largest is horizontal recoil −25% on the Han 86 (better).
Which weapons can use the Corvus LVL-40?
Community sites list Han 86, M4, Hyeon Burst, Axion, and FiNN LMG. Activision has not published a compatibility list.
Is the Corvus LVL-40 in a popular build?
No. None of the popular builds that CODMunity lists uses it.