30 Round Mag attachment in MW4
The 30 Round Mag is a magazine attachment (“30-round magazine”) that community sites list for 4 weapons: Oden, Cronen Squall, VEL 46, and MAR-9. CODMunity lists a stat change on 4 of them; the largest is magazine size +50% on the Oden (better). It is in 8 popular builds that CODMunity lists.
Community-reportedDMZ Radar, ggranked, and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the 30 Round Mag
Activision publishes no compatibility list; 3 community sources report these 4 weapons. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Oden | Assault Rifle | magazine size (large, better), total rounds (large, better), reload time (moderate, worse), crouch movement speed (small, worse), ADS speed (small, worse), ADS movement speed (small, worse), firing movement speed (small, worse), and ADS out speed (small, worse), and 5 more | |
| Cronen Squall | Assault Rifle | magazine size (large, better), total rounds (large, better), reload time (moderate, worse), ADS movement speed (small, worse), crouch movement speed (small, worse), firing movement speed (small, worse), ADS speed (small, worse), and ADS out speed (small, worse), and 5 more | |
| VEL 46 | SMG | reload time (large, better), magazine size (large, worse), total rounds (moderate, better), sprint to fire speed (small, better), ADS movement speed (minor, better), ADS speed (minor, better), and ADS out speed (minor, better) | |
| MAR-9 | Marksman Rifle | magazine size (large, better), total rounds (large, better), reload time (large, worse), crouch movement speed (small, worse), ADS speed (small, worse), ADS out speed (small, worse), ADS movement speed (small, worse), and firing movement speed (small, worse), and 5 more |
What the 30 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 |
|---|---|---|---|---|
| Oden | Magazine size | 20 rounds | 30 rounds | +50% (better) |
| Reload time | 3300 ms | 3597 ms | +9% (worse) | |
| ADS speed | 320 ms | 333 ms | +4% (worse) | |
| ADS movement speed | 2.18 m/s | 2.11 m/s | −3% (worse) | |
| Movement speed | 4.46 m/s | 4.37 m/s | −2% (worse) | |
| Sprint speed | 6.03 m/s | 5.91 m/s | −2% (worse) | |
| Cronen Squall | Magazine size | 20 rounds | 30 rounds | +50% (better) |
| Reload time | 3533 ms | 3886 ms | +10% (worse) | |
| ADS movement speed | 2.24 m/s | 2.17 m/s | −3% (worse) | |
| ADS speed | 305 ms | 314 ms | +3% (worse) | |
| Sprint speed | 6.07 m/s | 5.95 m/s | −2% (worse) | |
| Movement speed | 4.55 m/s | 4.50 m/s | −1% (worse) | |
| VEL 46 | Reload time | 2633 ms | 1896 ms | −28% (better) |
| Magazine size | 40 rounds | 30 rounds | −25% (worse) | |
| Sprint to fire speed | 110 ms | 105 ms | −5% (better) | |
| ADS movement speed | 3.22 m/s | 3.28 m/s | +2% (better) | |
| ADS speed | 230 ms | 225 ms | −2% (better) | |
| MAR-9 | Magazine size | 20 rounds | 30 rounds | +50% (better) |
| Reload time | 2933 ms | 3432 ms | +17% (worse) | |
| ADS speed | 330 ms | 343 ms | +4% (worse) | |
| ADS movement speed | 2.10 m/s | 2.04 m/s | −3% (worse) | |
| Movement speed | 4.41 m/s | 4.32 m/s | −2% (worse) | |
| Sprint speed | 5.93 m/s | 5.81 m/s | −2% (worse) |
Smaller changes are left out of the table: 7 other stats on the Oden, 7 other stats on the Cronen Squall, 2 other stats on the VEL 46, and 7 other stats on the MAR-9.
Changes across weapons
The stats it changes on 4 weapons, with the lowest and highest change.
| Stat | Weapons | Lowest change | Highest change | Verdicts |
|---|---|---|---|---|
| Magazine size | 4 | −25% | +50% | 3 better, 1 worse |
| Reload time | 4 | −28% | +17% | 1 better, 3 worse |
| ADS speed | 4 | −2% | +4% | 1 better, 3 worse |
| ADS movement speed | 4 | −3% | +2% | 1 better, 3 worse |
| Movement speed | 3 | −2% | −1% | 0 better, 3 worse |
| Sprint speed | 3 | −2% | −2% | 0 better, 3 worse |
| Sprint to fire speed | 1 | −5% | −5% | 1 better, 0 worse |
| Total rounds | 4 | +13% | +50% | 4 better, 0 worse |
| ADS out speed | 4 | −2% | +4% | 1 better, 3 worse |
| Crouch movement speed | 3 | −4% | −3% | 0 better, 3 worse |
| ADS gun bob | 3 | +2% | +3% | 0 better, 3 worse |
| Firing movement speed | 3 | −3% | −3% | 0 better, 3 worse |
| Strafe speed | 3 | −2% | −1% | 0 better, 3 worse |
| Tactical sprint speed | 3 | −2% | −2% | 0 better, 3 worse |
How it ranks among magazine attachments
Its largest change on each weapon, compared with the other magazine attachments the source lists that stat for.
- Oden: its large magazine size change (better) is the only one listed.
- Cronen Squall: its large magazine size change (better) is the weakest of 2 magazine attachments.
- VEL 46: its large reload time change (better) is the best of 2 magazine attachments.
- MAR-9: its large magazine size change (better) is the best of 2 magazine attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the 30 Round Mag
CODMunity lists 8 popular builds that use it: 5 for Multiplayer and 3 for DMZ. The styles are Versatile, Mobility, and Long Range. The same builds also use optic, muzzle, underbarrel, laser, stock, rear grip, and barrel attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Oden | Multiplayer, Versatile | Meta | Optic: ZLR Type C, Muzzle: VLK SH-S12, Underbarrel: FSS Fireline Grip, and Laser: XRK Clutch-LS | Open in the builder: Oden, Versatile |
| Oden | Multiplayer, Mobility | Very good | Optic: ZLR Type C, Muzzle: VLK SH-S12, Stock: GL HOX-20 Stock, and Laser: Schlager VISIV-5 | Open in the builder: Oden, Mobility |
| Cronen Squall | Multiplayer, Versatile with Apex Attachment | Very good | Optic: ZLR Type C, Muzzle: EXP Undertow Gen. 2, and Rear Grip: Cronen SQL Grip | Open in the builder: Cronen Squall, Versatile |
| MAR-9 | Multiplayer, Mobility with Apex Attachment | Very good | Barrel: Bruen Reaper-X, Rear Grip: Hanbit AGRS-1 Pro, Stock: Schlager HVOX-80, and Laser: SZ Gen.6 PEQ | Open in the builder: MAR-9, Mobility |
| MAR-9 | Multiplayer, Versatile with Apex Attachment | Very good | Barrel: Bruen Reaper-X, Rear Grip: Hanbit AGRS-1 Pro, Stock: LM Scout VX-9, and Laser: SZ Gen.6 PEQ | Open in the builder: MAR-9, Versatile |
| Oden | DMZ, Long Range | Not tiered | Optic: KV Corsac Holo, Muzzle: TV Multical-77, Barrel: Rockfall-900 Barrel, and Underbarrel: FSS Fireline Grip | Open in the builder: Oden, Long Range |
| MAR-9 | DMZ, Long Range with Apex Attachment | Not tiered | Optic: KV Corsac Holo, Muzzle: EXP Undertow Gen. 2, Rear Grip: Schlager PLM-S9, and Laser: SZ Gen.6 PEQ | Open in the builder: MAR-9, Long Range |
| MAR-9 | DMZ, Long Range | Not tiered | Optic: KV Corsac Holo, Muzzle: EXP Undertow Gen. 2, Barrel: LM Class 6 HBL, and Rear Grip: Schlager PLM-S9 | Open in the builder: MAR-9, Long Range |
Builds are community-reported and unverified.
Frequently asked questions
What does the 30 Round Mag do in MW4?
CODMunity lists 46 stat changes for it across 4 weapons: 12 better and 34 worse. The largest is magazine size +50% on the Oden (better).
Which weapons can use the 30 Round Mag?
Community sites list Oden, Cronen Squall, VEL 46, and MAR-9. Activision has not published a compatibility list.
Is the 30 Round Mag in a popular build?
Yes. CODMunity lists it in 8 popular builds, on Oden, Cronen Squall, and MAR-9.