Section 16140.

Cal. Penal Code - PEN § 16140.
in effect
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As used in this part, “air gauge knife” means a device that appears to be an air gauge but has concealed within it a pointed, metallic shaft that is designed to be a stabbing instrument which is exposed by mechanical action or gravity which locks into place when extended.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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