The ISO 45 has been a game-changer in the early days of Warzone Mobile, featuring a big .45 caliber round and a fast fire rate that allowed for clearing rooms and as a sniper support weapon.

While it is currently outside of the absolute meta range, the ISO 45 can be great for close quarters in the hands of a skilled soldier. With these new attachments from Modern Warfare III, we found this build to work!

OPTIC: Cronen INTLAS MSP-12 (unlocked at the Arsenal Store)

This multi-purpose blue dot sight helps in ensuring good aiming stability, faster response times, and better sprint-to-fire speeds while having both a clear sight picture and an integrated laser attachment for better aiming.

MUZZLE: ZEHMN35 Compensated Flash Hider (unlocked by leveling the HRM-9 to Level 6)

The best muzzle attachment for recoil control, the ZEHMN35 compensator helps in increasing firing aim stability and reducing recoil kick, with an added benefit of neutralizing tracers as the attachment is a flash hider.

BARREL: 9” PTX Trainer (unlocked at Level 10)

Damage range, hipfire accuracy, movement speed and bullet velocity is improved by this 9-inch barrel upgrade, allowing you to utilize the ISO 45 in the close-to-mid range category efficiently. Coupled with the Singuard MkV, this is a deadly combination of firepower and bullet velocity.

MAGAZINE: 45 Round Drum (unlocked at Level 15)

The 45 round drum is what makes the ISO 45 an absolute weapon – by allowing you to expend high caliber rounds with a high fire rate. Make sure you grind this attachment early on to allow you to spam more rounds and win gunfights at different ranges as the 30 round stock magazine is just too small to keep up with its damage potential.

UNDERBARREL: Bruen Tactical Vertical Grip (unlocked by leveling the MCW to Level 9)

This grip helps capitalize on the potential of the ISO 45 to become a hip fire beast by stabilizing the weapon’s gun kick and also reducing a bit of the hipfire spread.

OPTIONAL REPLACEMENTS:

AMMUNITION: .45 Auto High Grain Rounds (unlocked by leveling up the Striker to Level 14)

.45 High Grain Rounds can be used to further increase the potency of your ISO 45 by adding a range and damage buff per shot, at the cost of some recoil control which the Bruen Tactical Vertical Grip can mitigate. This attachment can replace the barrel.

These new attachments can help you utilize the power of the ISO 45, allowing you to have a weapon viable for close quarter combat!