Brand: StopBox USA
Model: Shotgun Chamber Lock Pro
Intended Use: Rapid-access security; stages the firearm for home defense while preventing unauthorized use.
Firearm Type: Most 12-gauge pump-action shotguns (e.g., Mossberg 500/590, Remington 870, Maverick 88).
Entry Type: Mechanical hand-gesture code (81 possible combinations).
Battery Size: None; 100% mechanical.
Mounting Type: Chamber/Ejection Port Mounted; can be secured with a cable
Firearm Capacity: 1 Shotgun.
Proofs/Resistances: Tamper-resistant aircraft-grade construction.
Interior Material: 6061-T6 Aluminum.
Outer Material: 6061-T6 Aluminum.
Finish: Red Anodized.
Exterior Dimensions: Approximately 3.25" x 2.25" x 1.75".
Includes: One Red Chamber Lock Pro and indexing configuration pins.

Features

The StopBox USA Shotgun Chamber Lock Pro is a fast, non-invasive firearm safety solution designed to help secure shotguns during storage, transport, and display. Engineered to fit most 12 gauge pump-action and semi-automatic shotguns, this chamber lock blocks the action from closing and provides a highly visible indication that the firearm is secured and unloaded. Its durable construction and tool-free installation make it ideal for responsible firearm owners looking for quick and effective firearm safety storage options. Built for convenience and reliability, the StopBox Shotgun Chamber Lock Pro features a rugged design that resists tampering while remaining easy to install and remove when authorized access is needed. The bright, highly visible design allows for rapid visual confirmation of safe firearm status, making it useful for home storage, range transport, hunting camps, and training environments. Whether used as part of a larger firearm security setup or as a standalone safety accessory, the StopBox USA Shotgun Chamber Lock Pro offers dependable peace of mind for shotgun owners.

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