9mm Parabellum Overpressured attachment in MW4
The 9mm Parabellum Overpressured is a ammunition attachment that community sites list for 2 weapons: ISO Nightshade and SANG 9mm. CODMunity lists a stat change on 2 of them; the largest is bullet penetration −30% on the ISO Nightshade (worse). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the 9mm Parabellum Overpressured
Activision publishes no compatibility list; 2 community sources report these 2 weapons. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| ISO Nightshade | SMG | bullet penetration (large, worse) | |
| SANG 9mm | Pistol | bullet penetration (large, worse) |
What the 9mm Parabellum Overpressured changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| ISO Nightshade | Bullet penetration | 9.0 in | 6.3 in | −30% (worse) |
| SANG 9mm | Bullet penetration | 9.0 in | 6.3 in | −30% (worse) |
Changes across weapons
The stats it changes on 2 weapons, with the lowest and highest change.
| Stat | Weapons | Lowest change | Highest change | Verdicts |
|---|---|---|---|---|
| Bullet penetration | 2 | −30% | −30% | 0 better, 2 worse |
How it ranks among ammunition attachments
Its largest change on each weapon, compared with the other ammunition attachments the source lists that stat for.
- ISO Nightshade: its large bullet penetration change (worse) is the weakest of 2 ammunition attachments.
- SANG 9mm: its large bullet penetration change (worse) is the only one listed.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the 9mm Parabellum Overpressured
No popular build listed by CODMunity uses the 9mm Parabellum Overpressured. That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the 9mm Parabellum Overpressured do in MW4?
CODMunity lists 2 stat changes for it across 2 weapons: 0 better and 2 worse. The largest is bullet penetration −30% on the ISO Nightshade (worse).
Which weapons can use the 9mm Parabellum Overpressured?
Community sites list ISO Nightshade and SANG 9mm. Activision has not published a compatibility list.
Is the 9mm Parabellum Overpressured in a popular build?
No. None of the popular builds that CODMunity lists uses it.