7 Round Mag attachment in MW4
The 7 Round Mag is a magazine attachment that community sites list for one weapon: Mosin-Nagant. CODMunity lists a stat change on 1 of them; the largest is magazine size +40% on the Mosin-Nagant (better). It is in 1 popular build that CODMunity lists.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the 7 Round Mag
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 |
|---|---|---|---|
| Mosin-Nagant | Marksman Rifle | magazine size (large, better), total rounds (large, better), crouch movement speed (minor, worse), ADS speed (minor, worse), ADS out speed (minor, worse), movement speed (minor, worse), ADS movement speed (minor, worse), and sprint speed (minor, worse), and 4 more |
What the 7 Round Mag changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Mosin-Nagant | Magazine size | 5 rounds | 7 rounds | +40% (better) |
| ADS speed | 350 ms | 357 ms | +2% (worse) | |
| Movement speed | 4.57 m/s | 4.52 m/s | −1% (worse) | |
| ADS movement speed | 2.10 m/s | 2.08 m/s | −1% (worse) | |
| Sprint speed | 6.04 m/s | 5.98 m/s | −1% (worse) |
Smaller changes are left out of the table: 7 other stats on the Mosin-Nagant.
How it ranks among magazine attachments
Its largest change on each weapon, compared with the other magazine attachments the source lists that stat for.
- Mosin-Nagant: its large magazine size change (better) is the weakest of 2 magazine attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the 7 Round Mag
CODMunity lists 1 popular build that use it, all for Multiplayer. The styles are Apex Attachment. The same builds also use bolt, stock, laser, and ammunition attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Mosin-Nagant | Multiplayer, Apex Attachment with Apex Attachment | Viable | Bolt: TV-Light 7- Bolt, Stock: No Stock, Laser: Schlager VISIV-5, and Ammunition: 7.62x54mmR High Velocity | Open in the builder: Mosin-Nagant, Apex Attachment |
Builds are community-reported and unverified.
Frequently asked questions
What does the 7 Round Mag do in MW4?
CODMunity lists 12 stat changes for it across 1 weapon: 2 better and 10 worse. The largest is magazine size +40% on the Mosin-Nagant (better).
Which weapons can use the 7 Round Mag?
Community sites list Mosin-Nagant. Activision has not published a compatibility list.
Is the 7 Round Mag in a popular build?
Yes. CODMunity lists it in 1 popular build, on Mosin-Nagant.