Matuzek Ironcall 31 attachment in MW4
The Matuzek Ironcall 31 is a muzzle attachment (“Horizontal Comp”) that community sites list for one weapon: APOC-338. CODMunity lists a stat change on 1 of them; the largest is horizontal recoil −25% on the APOC-338 (better). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the Matuzek Ironcall 31
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 |
|---|---|---|---|
| APOC-338 | LMG | horizontal gun kick (large, better), horizontal recoil (large, better), ADS speed (minor, worse), and ADS out speed (minor, worse) |
What the Matuzek Ironcall 31 changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| APOC-338 | Horizontal recoil | 31.3 | 23.5 | −25% (better) |
| ADS speed | 510 ms | 520 ms | +2% (worse) |
Smaller changes are left out of the table: 2 other stats on the APOC-338.
How it ranks among muzzle attachments
Its largest change on each weapon, compared with the other muzzle attachments the source lists that stat for.
- APOC-338: its large horizontal recoil change (better) is the best of 4 muzzle attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the Matuzek Ironcall 31
No popular build listed by CODMunity uses the Matuzek Ironcall 31. That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the Matuzek Ironcall 31 do in MW4?
CODMunity lists 4 stat changes for it across 1 weapon: 2 better and 2 worse. The largest is horizontal recoil −25% on the APOC-338 (better).
Which weapons can use the Matuzek Ironcall 31?
Community sites list APOC-338. Activision has not published a compatibility list.
Is the Matuzek Ironcall 31 in a popular build?
No. None of the popular builds that CODMunity lists uses it.