100 Round Box Mag attachment in MW4
The 100 Round Box Mag is a magazine attachment (“100-round box magazine”) that community sites list for one weapon: Type 73. CODMunity lists a stat change on 1 of them; the largest is magazine size +67% on the Type 73 (better). It is in 1 popular build that CODMunity lists.
Community-reportedDMZ Codex, DMZ Radar, ggranked, and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the 100 Round Box Mag
Activision publishes no compatibility list; 4 community sources report this weapon. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Type 73 | LMG | magazine size (large, better), total rounds (large, better), reload time (moderate, worse), crouch movement speed (small, worse), ADS movement speed (small, worse), firing movement speed (small, worse), ADS speed (small, worse), and ADS out speed (small, worse), and 5 more |
What the 100 Round Box Mag changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Type 73 | Magazine size | 60 rounds | 100 rounds | +67% (better) |
| Reload time | 6767 ms | 7714 ms | +14% (worse) | |
| ADS movement speed | 1.81 m/s | 1.76 m/s | −3% (worse) | |
| ADS speed | 460 ms | 474 ms | +3% (worse) | |
| Movement speed | 4.33 m/s | 4.24 m/s | −2% (worse) | |
| Sprint speed | 5.71 m/s | 5.60 m/s | −2% (worse) |
Smaller changes are left out of the table: 7 other stats on the Type 73.
How it ranks among magazine attachments
Its largest change on each weapon, compared with the other magazine attachments the source lists that stat for.
- Type 73: its large magazine size change (better) is the only one listed.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the 100 Round Box Mag
CODMunity lists 1 popular build that use it, all for DMZ. The styles are Long Range. The same builds also use optic, muzzle, barrel, and laser attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Type 73 | DMZ, Long Range | Not tiered | Optic: KV Corsac Holo, Muzzle: Gauge-12 Mono, Barrel: Haebang ET-9D 772mm, and Laser: Schlager VISIV-5 | Open in the builder: Type 73, Long Range |
Builds are community-reported and unverified.
Frequently asked questions
What does the 100 Round Box Mag do in MW4?
CODMunity lists 13 stat changes for it across 1 weapon: 2 better and 11 worse. The largest is magazine size +67% on the Type 73 (better).
Which weapons can use the 100 Round Box Mag?
Community sites list Type 73. Activision has not published a compatibility list.
Is the 100 Round Box Mag in a popular build?
Yes. CODMunity lists it in 1 popular build, on Type 73.