- "This small dot sight from SoloZero features a clear sight picture with minimal frame obstruction."
- — Description
The SZ Sigma-IV Optic is an optical attachment featured in Call of Duty: Modern Warfare III and Modern Warfare III. It is available after getting the X12 to level 4 in Modern Warfare II or getting the Rival-9 to level 2 in Modern Warfare III. It can be put on all weapons that can accept attachments.
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