Call Us: 800-207-2259

StopBox Shotgun Chamber Lock

$ 149.00

Ships Same Business Day

StopBox Shotgun Chamber Lock

New & Improved for 2025:

  • 81 Adjustable Combinations
  • Security Cable Compatible
  • Improved Grip

The StopBox Shotgun Chamber Lock is another innovative product by StopBox. It is designed to prevent tampering with your shotgun but allows quick access when needed. Your rifle will be at the ready but locked. Never worry about the batteries to your safe dying, electronics failing, or losing keys. 

Just insert the StopBox Shotgun Chamber Lock into your firearm to secure it. When you want to use it, just press your combination to remove it. This chamber lock is machined 6061 T6 aluminum and is Type II and Type III Hard Anodized. StopBox provides a Lifetime Warranty with each purchase. 

The StopBox Shotgun Chamber Lock is compatible with a 12 gauge pump shotgun. The Rapid-Access Finger Code Lock allows you to press the buttons to remove it quickly. This chamber lock is 100% built in the USA in Spokane Valley, WA. 

If you have any questions regarding the StopBox Shotgun Chamber Lock, please call us at 800-207-2259.

Features: 

  • MADE IN THE USA
  • Secure your firearm while still having quick reliable access when you need it most.
  • No batteries, electronics, or keys!
  • Insert the Shotgun Chamber Lock into your firearm to secure it, press your combination to remove it. 
  • Designed to prevent tampering and quick access to others while your gun is at the ready.
  • Use it as a chamber flag at the range!
  • Available in 2 colors - Black or Red.

 Construction:

  • Machined 6061 T6 Aluminum
  • Type II and Type III Hard Anodized
  • Lifetime Warranty - We back our products 100%

Specifications:

  • Rapid-Access Finger Code Lock
  • 12 Gauge Pump Shotgun Compatible
  • Made in the USA
  • Patent Pending
  • The Shotgun Chamber Lock is compatible with common pump 12 gauge shotguns such as the Mossberg 590 and Remington 870

⚠ Warning

This product can expose you to chemicals, including lead or nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to: www.P65Warnings.ca.gov

Frequently Asked Questions

Is shipping really free?

Yes. Free delivery is included on every safe we sell, anywhere in the lower 48 states. The specific delivery method depends on the safe's weight: small package delivery for under 150 lbs, curbside, or garage delivery for heavier safes. See full shipping details →

How long will this take to arrive?

Shipping timelines vary by product. Check the availability status at the top of this page for the estimated ship date. Once shipped, transit time typically runs 5–10 business days, depending on your location. You'll receive tracking when the safe leaves the warehouse. Safes under 150 lbs ship via UPS or FedEx Ground, no appointment needed. Safes weighing 150 lbs or more ship via freight (LTL); the freight carrier will contact you directly to schedule a delivery appointment once the safe reaches your local terminal.

Can you deliver it inside my house and bolt it down?

We don't provide inside delivery directly, but we work with third-party installers across the country who do. Here's how it works: call us at 800-207-2259 for a recommendation in your area, and we'll provide the names and phone numbers of installers we've worked with. You contact the installer directly to arrange pricing for delivery and installation. Once you've agreed on a price, place your order with us using the installer's address as the shipping destination. The installer receives the safe, inspects it, and schedules your final delivery appointment. Some installers prefer to pick the safe up directly from the freight terminal. See inside delivery details →

Will this fit through my doorway?

Check the product's exterior dimensions (listed above) against your narrowest passage, interior doorways, stair landings, and tight turns. Most people remove the safe from the pallet before moving it indoors, so the safe's actual dimensions are what matter for doorways. Standard interior doorways (30–32" clear) accommodate most residential safes, but measure before ordering. Call us if you're uncertain. See where to locate your safe →


Can I change the combination myself?

Electronic locks: yes; it takes about 30 seconds. Instructions are included with your safe. Mechanical dial locks: no, changing a dial combination requires a licensed safe technician. Important: attempting to change a dial combination yourself (or having an unlicensed locksmith do it) voids the lock warranty. A licensed safe tech maintains the warranty. See lock operating instructions →


What if it arrives damaged?

Call us immediately — while you have 24 hours to report damage, calling right away gets the claim filed faster. Take photos of the damage and packaging before moving anything. For minor cosmetic damage, we typically send touch-up paint plus a partial refund. For significant damage, we send replacement parts or arrange a full replacement. Order Protection (optional at checkout) speeds refund payouts to 48–72 hours vs. 30–60 days through standard freight claims; replacement safes ship on the manufacturer's normal timeline regardless. See receiving your safe →

What's your return policy?

We offer a 30-day return policy on unused, in-original-condition products. The return freight for a heavy safe is substantial, so we strongly encourage you to call us before ordering if you're unsure about fit or configuration. See full return policy →

Can I place my order by phone?

Yes. Call us Monday–Friday, 8am–5pm Pacific at 800-207-2259. You have two options: we can take the full order by phone (we pause the call recording before you read your card number, so payment info is never stored), or we can build your order and email you a payable invoice link so you can enter your own payment details securely.

Model:SB231B - Black
SB231R - Red

✓ In Stock Ships in 1–2 Business Days

Transit time not included.

    Free Shipping
    In Stock

    Color: Black
    Black
    Red
    Free Shipping
    In Stock

    StopBox Shotgun Chamber Lock

    New & Improved for 2025:

    • 81 Adjustable Combinations
    • Security Cable Compatible
    • Improved Grip

    The StopBox Shotgun Chamber Lock is another innovative product by StopBox. It is designed to prevent tampering with your shotgun but allows quick access when needed. Your rifle will be at the ready but locked. Never worry about the batteries to your safe dying, electronics failing, or losing keys. 

    Just insert the StopBox Shotgun Chamber Lock into your firearm to secure it. When you want to use it, just press your combination to remove it. This chamber lock is machined 6061 T6 aluminum and is Type II and Type III Hard Anodized. StopBox provides a Lifetime Warranty with each purchase. 

    The StopBox Shotgun Chamber Lock is compatible with a 12 gauge pump shotgun. The Rapid-Access Finger Code Lock allows you to press the buttons to remove it quickly. This chamber lock is 100% built in the USA in Spokane Valley, WA. 

    If you have any questions regarding the StopBox Shotgun Chamber Lock, please call us at 800-207-2259.

    Features: 

    • MADE IN THE USA
    • Secure your firearm while still having quick reliable access when you need it most.
    • No batteries, electronics, or keys!
    • Insert the Shotgun Chamber Lock into your firearm to secure it, press your combination to remove it. 
    • Designed to prevent tampering and quick access to others while your gun is at the ready.
    • Use it as a chamber flag at the range!
    • Available in 2 colors - Black or Red.

     Construction:

    • Machined 6061 T6 Aluminum
    • Type II and Type III Hard Anodized
    • Lifetime Warranty - We back our products 100%

    Specifications:

    • Rapid-Access Finger Code Lock
    • 12 Gauge Pump Shotgun Compatible
    • Made in the USA
    • Patent Pending
    • The Shotgun Chamber Lock is compatible with common pump 12 gauge shotguns such as the Mossberg 590 and Remington 870

    ⚠ Warning

    This product can expose you to chemicals, including lead or nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to: www.P65Warnings.ca.gov

    Frequently Asked Questions

    Is shipping really free?

    Yes. Free delivery is included on every safe we sell, anywhere in the lower 48 states. The specific delivery method depends on the safe's weight: small package delivery for under 150 lbs, curbside, or garage delivery for heavier safes. See full shipping details →

    How long will this take to arrive?

    Shipping timelines vary by product. Check the availability status at the top of this page for the estimated ship date. Once shipped, transit time typically runs 5–10 business days, depending on your location. You'll receive tracking when the safe leaves the warehouse. Safes under 150 lbs ship via UPS or FedEx Ground, no appointment needed. Safes weighing 150 lbs or more ship via freight (LTL); the freight carrier will contact you directly to schedule a delivery appointment once the safe reaches your local terminal.

    Can you deliver it inside my house and bolt it down?

    We don't provide inside delivery directly, but we work with third-party installers across the country who do. Here's how it works: call us at 800-207-2259 for a recommendation in your area, and we'll provide the names and phone numbers of installers we've worked with. You contact the installer directly to arrange pricing for delivery and installation. Once you've agreed on a price, place your order with us using the installer's address as the shipping destination. The installer receives the safe, inspects it, and schedules your final delivery appointment. Some installers prefer to pick the safe up directly from the freight terminal. See inside delivery details →

    Will this fit through my doorway?

    Check the product's exterior dimensions (listed above) against your narrowest passage, interior doorways, stair landings, and tight turns. Most people remove the safe from the pallet before moving it indoors, so the safe's actual dimensions are what matter for doorways. Standard interior doorways (30–32" clear) accommodate most residential safes, but measure before ordering. Call us if you're uncertain. See where to locate your safe →


    Can I change the combination myself?

    Electronic locks: yes; it takes about 30 seconds. Instructions are included with your safe. Mechanical dial locks: no, changing a dial combination requires a licensed safe technician. Important: attempting to change a dial combination yourself (or having an unlicensed locksmith do it) voids the lock warranty. A licensed safe tech maintains the warranty. See lock operating instructions →


    What if it arrives damaged?

    Call us immediately — while you have 24 hours to report damage, calling right away gets the claim filed faster. Take photos of the damage and packaging before moving anything. For minor cosmetic damage, we typically send touch-up paint plus a partial refund. For significant damage, we send replacement parts or arrange a full replacement. Order Protection (optional at checkout) speeds refund payouts to 48–72 hours vs. 30–60 days through standard freight claims; replacement safes ship on the manufacturer's normal timeline regardless. See receiving your safe →

    What's your return policy?

    We offer a 30-day return policy on unused, in-original-condition products. The return freight for a heavy safe is substantial, so we strongly encourage you to call us before ordering if you're unsure about fit or configuration. See full return policy →

    Can I place my order by phone?

    Yes. Call us Monday–Friday, 8am–5pm Pacific at 800-207-2259. You have two options: we can take the full order by phone (we pause the call recording before you read your card number, so payment info is never stored), or we can build your order and email you a payable invoice link so you can enter your own payment details securely.

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