45 Round Mag attachment in MW4
The 45 Round Mag is a magazine attachment (“45-round magazine”) that community sites list for 2 weapons: Han 86 and M4. CODMunity lists a stat change on 2 of them; the largest is magazine size +50% on the Han 86 (better). It is in 3 popular builds that CODMunity lists.
Community-reportedDMZ Codex, ggranked, and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the 45 Round Mag
Activision publishes no compatibility list; 3 community sources report these 2 weapons. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Han 86 | Assault Rifle | magazine size (large, better), total rounds (large, better), reload time (moderate, worse), ADS speed (small, worse), ADS out speed (small, worse), ADS movement speed (small, worse), crouch movement speed (small, worse), and firing movement speed (small, worse), and 5 more | |
| M4 | Assault Rifle | magazine size (large, better), total rounds (large, better), reload time (large, worse), ADS speed (small, worse), crouch movement speed (minor, worse), ADS out speed (minor, worse), movement speed (minor, worse), and ADS movement speed (minor, worse), and 5 more |
What the 45 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 |
|---|---|---|---|---|
| Han 86 | Magazine size | 30 rounds | 45 rounds | +50% (better) |
| Reload time | 3133 ms | 3446 ms | +10% (worse) | |
| ADS speed | 250 ms | 263 ms | +5% (worse) | |
| ADS movement speed | 2.47 m/s | 2.40 m/s | −3% (worse) | |
| Sprint speed | 6.13 m/s | 6.01 m/s | −2% (worse) | |
| Movement speed | 4.67 m/s | 4.62 m/s | −1% (worse) | |
| M4 | Magazine size | 30 rounds | 45 rounds | +50% (better) |
| Reload time | 2600 ms | 2990 ms | +15% (worse) | |
| ADS speed | 240 ms | 247 ms | +3% (worse) | |
| Movement speed | 4.70 m/s | 4.65 m/s | −1% (worse) | |
| ADS movement speed | 2.51 m/s | 2.48 m/s | −1% (worse) | |
| Sprint speed | 6.18 m/s | 6.12 m/s | −1% (worse) |
Smaller changes are left out of the table: 7 other stats on the Han 86 and 7 other stats on the M4.
Changes across weapons
The stats it changes on 2 weapons, with the lowest and highest change.
| Stat | Weapons | Lowest change | Highest change | Verdicts |
|---|---|---|---|---|
| Magazine size | 2 | +50% | +50% | 2 better, 0 worse |
| Reload time | 2 | +10% | +15% | 0 better, 2 worse |
| ADS speed | 2 | +3% | +5% | 0 better, 2 worse |
| ADS movement speed | 2 | −3% | −1% | 0 better, 2 worse |
| Sprint speed | 2 | −2% | −1% | 0 better, 2 worse |
| Movement speed | 2 | −1% | −1% | 0 better, 2 worse |
| Total rounds | 2 | +50% | +50% | 2 better, 0 worse |
| ADS out speed | 2 | +2% | +4% | 0 better, 2 worse |
| Crouch movement speed | 2 | −3% | −2% | 0 better, 2 worse |
| Firing movement speed | 2 | −3% | −1% | 0 better, 2 worse |
| ADS gun bob | 2 | +1% | +2% | 0 better, 2 worse |
| Tactical sprint speed | 2 | −2% | −1% | 0 better, 2 worse |
| Strafe speed | 2 | −1% | −1% | 0 better, 2 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.
- Han 86: its large magazine size change (better) is the weakest of 2 magazine attachments.
- M4: 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 45 Round Mag
CODMunity lists 3 popular builds that use it, all for Multiplayer. The styles are Mobility and Apex Attachment. The same builds also use optic, muzzle, stock, laser, rear grip, and ammunition attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Han 86 | Multiplayer, Mobility | Very good | Optic: ZLR Type C, Muzzle: FSS IS40, Stock: Meiko L9P-Fold, and Laser: Schlager VISIV-5 | Open in the builder: Han 86, Mobility |
| Han 86 | Multiplayer, Apex Attachment with Apex Attachment | Viable | Muzzle: FSS IS300, Rear Grip: FTAC Griplord 80, Laser: XRK Clutch-LS, and Ammunition: 5.56 NATO Overpressured | Open in the builder: Han 86, Apex Attachment |
| M4 | Multiplayer, Mobility | Meta | Muzzle: FSS IS300, Rear Grip: Schlager STB Grip, Stock: No Stock, and Laser: SZ Gen.6 PEQ | Open in the builder: M4, Mobility |
Builds are community-reported and unverified.
Frequently asked questions
What does the 45 Round Mag do in MW4?
CODMunity lists 26 stat changes for it across 2 weapons: 4 better and 22 worse. The largest is magazine size +50% on the Han 86 (better).
Which weapons can use the 45 Round Mag?
Community sites list Han 86 and M4. Activision has not published a compatibility list.
Is the 45 Round Mag in a popular build?
Yes. CODMunity lists it in 3 popular builds, on Han 86 and M4.