Game: Modern Warfare 4MW4

.357 Magnum Overpressured attachment in MW4

AmmunitionOverpressured .357 Magnum ammunition

The .357 Magnum Overpressured is a ammunition attachment (“Overpressured .357 Magnum ammunition”) that community sites list for one weapon: Mojave .357. CODMunity lists a stat change on 1 of them; the largest is bullet penetration −30% on the Mojave .357 (worse). It is in 2 popular builds that CODMunity lists.

Community-reportedDMZ Radar, ggranked, and CODMunity, read . Unverified, not Activision data.

Weapons that can equip the .357 Magnum Overpressured

Activision publishes no compatibility list; 3 community sources report this weapon. No weapon level is reported.

Weapons that can equip the .357 Magnum Overpressured, with weapon level and the stats the source lists a change for
WeaponClassWeapon levelStats with a listed change
Mojave .357Pistolnot reportedbullet penetration (large, worse)

What the .357 Magnum Overpressured changes

Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).

Key stats the .357 Magnum Overpressured changes on each weapon, from the base value with nothing attached
WeaponStatBaseWith itChange
Mojave .357Bullet penetration21.0 in14.7 in−30% (worse)

How it ranks among ammunition attachments

Its largest change on each weapon, compared with the other ammunition attachments the source lists that stat for.

Pros and cons the sources list

None reported, which is different from having none.

Popular builds that use the .357 Magnum Overpressured

CODMunity lists 2 popular builds that use it: 1 for Multiplayer and 1 for DMZ. The styles are Mobility and Close Range. The same builds also use cylinder, muzzle, barrel, rear grip, and laser attachments.

Popular builds that use the .357 Magnum Overpressured
WeaponMode and styleTierOther attachmentsBuilder
Mojave .357Multiplayer, Mobility with Apex AttachmentViableCylinder: Mojave Speed Cylinder, Muzzle: Matuzek H357-M Comp, Barrel: Bryson Snub 2", and Rear Grip: SA Tyrant GripOpen in the builder: Mojave .357, Mobility
Mojave .357DMZ, Close Range with Apex AttachmentNot tieredCylinder: Mojave Speed Cylinder, Muzzle: Matuzek H357-M Comp, Barrel: XRK Greywolf 7.5", and Laser: GW MDL-2Open in the builder: Mojave .357, Close Range

Builds are community-reported and unverified.

Frequently asked questions

What does the .357 Magnum Overpressured do in MW4?

CODMunity lists 1 stat change for it across 1 weapon: 0 better and 1 worse. The largest is bullet penetration −30% on the Mojave .357 (worse).

Which weapons can use the .357 Magnum Overpressured?

Community sites list Mojave .357. Activision has not published a compatibility list.

Is the .357 Magnum Overpressured in a popular build?

Yes. CODMunity lists it in 2 popular builds, on Mojave .357.

Sources: DMZ Radar (read October 24, 2026); ggranked (read October 28, 2026); CODMunity (read October 28, 2026). Updated .