FJX Ghostfire 16.3" attachment in MW4
The FJX Ghostfire 16.3" is a barrel attachment (“Silenced Barrel”) that community sites list for one weapon: Kastov 762. CODMunity lists a stat change on 1 of them; the largest is bullet velocity +12% on the Kastov 762 (better). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the FJX Ghostfire 16.3"
Activision publishes no compatibility list; 2 community sources report this weapon. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Kastov 762 | Assault Rifle | bullet velocity (moderate, better), ADS speed (moderate, worse), damage range (moderate, better), vertical recoil (moderate, better), horizontal recoil (moderate, better), vertical gun kick (moderate, better), horizontal gun kick (moderate, better), and ADS out speed (small, worse), and 3 more |
What the FJX Ghostfire 16.3" changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Kastov 762 | Bullet velocity | 560 m/s | 627 m/s | +12% (better) |
| ADS speed | 280 ms | 311 ms | +11% (worse) | |
| Damage range | 100% | 111% | +11% (better) | |
| Vertical recoil | 51.9 | 47.7 | −8% (better) | |
| Horizontal recoil | 28.7 | 26.4 | −8% (better) |
Smaller changes are left out of the table: 6 other stats on the Kastov 762.
How it ranks among barrel attachments
Its largest change on each weapon, compared with the other barrel attachments the source lists that stat for.
- Kastov 762: its moderate bullet velocity change (better) is in the lower half of 3 barrel attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the FJX Ghostfire 16.3"
No popular build listed by CODMunity uses the FJX Ghostfire 16.3". That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the FJX Ghostfire 16.3" do in MW4?
CODMunity lists 11 stat changes for it across 1 weapon: 6 better and 5 worse. The largest is bullet velocity +12% on the Kastov 762 (better).
Which weapons can use the FJX Ghostfire 16.3"?
Community sites list Kastov 762. Activision has not published a compatibility list.
Is the FJX Ghostfire 16.3" in a popular build?
No. None of the popular builds that CODMunity lists uses it.