Lost Gun Safe Key: How to Replace It, Brand by Brand

Short answer: A lost gun safe key is replaced by the safe's manufacturer, not a hardware store. Find the model number, serial number and, if you can, the key number, then use the maker's key request process. Most makers ask for a signed form plus notarization or proof of purchase, charge a fee, and can't promise every key is still available. If you need in before the key arrives, use your code if the safe has one, or call a licensed locksmith or safe technician who will verify you own the safe.

What the key does on your safe decides how urgent this is. On an electronic gun safe, the key is often a backup to the keypad. On a keyed dial, it may lock only the dial. On a key-only cabinet, it is the lock. This guide covers all three, then walks through the replacement process for the brands people search for most. If you're choosing a safe and want a better backup plan next time, our gun safes page explains what to check.

What your gun safe key actually does

Three common roles, from the manufacturers' own descriptions:

• Backup or override key on an electronic lock. Stack-On says all of its electronic-lock safes come with a backup key, and its combination-lock safes don't. Cannon's manuals describe a backup key on select models, "in case you have forgotten or lost your security code." First Alert ships two emergency override keys with its digital handgun safes and fire safes, per its manuals.
• A key that locks the dial. Liberty Safe's keyed-dial page says the key locks the dial itself and calls it a "day lock" — quick and convenient, but with "a rather low level of security," because other keys like yours could exist. The combination is the real lock.
• The only lock. On key-only cabinets and lock boxes, losing the key means losing the only way in.

So a lost backup key on a working keypad safe is an errand. A lost key on a key-only cabinet is a lockout. If you're locked out, our locked out of a safe guide covers that case.

Find the key number, model and serial before you call

Every replacement process starts with identification. Gather these first:

• Model number and serial number. Cannon's FAQ says the serial number is on a small silver sticker on the right outside wall, upper front corner, and the model number is on the door. First Alert's manuals describe a metallic silver or gray serial tag, usually on the front or right side.
• Key number. First Alert's 5200DF manual says the key number is engraved on the keys and around the lock cylinder, and that it's required to receive a replacement key. Barska asks for a clear photo of the key number, keyhole or the remark sticker on the safe or inside its door.
• Proof of purchase. A receipt or bill of sale. Liberty, Winchester and Barska all treat it as part of the ownership check.

Write all of this down now, for every safe you own, and keep it somewhere other than the safe. The manuals ask for the same thing, in nearly the same words.

(I have a folder of safe manuals on my phone. Every single one has a blank identification page at the back. Most of them, I assume, are still blank.)

Gun safe key replacement, brand by brand

The process changes by maker. Here's what each one documents.

Liberty Safe. Download the combination/key request form, fill it in, have it notarized and submit payment. Include proof of purchase if your warranty registration hasn't been on file for at least 90 days. Without a receipt, Liberty asks for verification from local law enforcement or a licensed and bonded locksmith. Liberty says to allow 3–5 business days for review and processing.

Winchester Safes. The combination request form covers keys too. Winchester requires a notarized form and either a valid proof of purchase or a letter from local law enforcement confirming the safe is in your possession and not reported stolen. Winchester says it sells keys only for listed models and does not sell keys for dials, and that it can't guarantee recovering a combination. Allow 7–10 business days.

Stack-On. Stack-On's FAQ says its key replacement form can be completed online. Record the serial number of a combination-lock Stack-On safe — you'll need it for a lost-combination request. Stack-On is a brand of Cannon Security Products, per its support page.

Cannon Safe (and Cannon safe backup key). Cannon's support page lists key replacement among its services and routes requests through product registration. Its manuals say registration "helps verify your identity" when you need help. Cannon's warranty excludes lost keys and lost or forgotten combinations, so plan on a paid replacement.

GunVault. GunVault's key replacement page sits under the same Cannon Security Products support structure, with the same customer service number. The page itself lists no steps, so call before you send anything.

Barska. Submit Barska's online key request form, then complete, sign and return the Key Request Form it emails you. Notarization is required unless your receipt's shipping address matches the address the key is going to. Barska says it can't guarantee availability and that a special-order key can take up to 3 to 4 months.

First Alert. Call First Alert Safes support to confirm a key is available, then send a notarized statement of ownership and pay the fee. First Alert says it can't guarantee replacement keys for safes out of warranty. Our First Alert safe override key guide has the full steps.

SentrySafe and Master Lock. Master Lock's replacement site handles lost keys and combinations for SentrySafe and Master Lock, for US customers only, with a non-refundable charge and up to 7–10 business days of processing. Our SentrySafe lockout guide covers the Sentry side.

Sports Afield and SnapSafe. We didn't find a published key replacement procedure on either maker's site. Check the manual and warranty card that came with the safe, and contact the manufacturer with your model and serial number.

The form wants a notary. The notary wants ID. The key arrives last.

Barska safe lost key, dead battery and emergency key

Barska keypad safes draw a cluster of searches — lost key, dead battery with no key, emergency key — so they get their own note.

Barska's backup key request page is the documented route for a lost or extra key, with the notarization rule above. Barska asks for a photo of the key number, keyhole or remark sticker, and warns that unclear information can cause errors it won't be responsible for. For a dead battery with no key, we didn't find a Barska support page describing another way in; check your model's manual on Barska's product manuals page and contact Barska. A licensed locksmith who verifies ownership is the other route.

Here's the catch: the hard part is supposed to be hard

Winchester's request page says it directly: "we sell security," and the company must be sure it's giving the combination or key to the true owner. That's why the process involves a notary, a receipt or a police letter, and a wait.

Picture Kevin trying the same form. He has a pillowcase and a strong desire to leave. He does not have a notarized bill of sale with a serial number and both signatures. That's the point of every step that feels slow to you.

The other catch is availability. Winchester sells keys only for certain models. First Alert won't guarantee keys out of warranty. Barska says some keys may be discontinued. A key replacement isn't a right; it's a service that runs out.

And a key you can buy without proof isn't much of a lock. Liberty says as much about dial keys: other keys like yours could be out there. Treat any keyed lock as convenience, and the combination or code as the real security.

Skip it if: when you don't need a replacement key

• Your electronic safe still opens with the code. The backup key can wait for the mail. Use the code meanwhile.
• You know the combination on a keyed-dial safe and the dial isn't locked. Open it normally and order the key at leisure.
• You've lost the code, not the key. That's a combination request. For Cannon, see Cannon safe lockout; for others, how to open a safe without a key and locked out of a safe.
• The key turns but the safe won't open. That's a mechanical issue, not a lost key — see how to open a gun safe.

If firearms are stored in the safe and children live in or visit the home, the replacement key needs the same care as the original: a secure place a child cannot find or reach, and never inside the safe. First Alert's handgun safe manual says the same.

That's the file. Photograph the key number, write down the model and serial, and put the spare key somewhere that isn't on the car key ring and isn't next to the safe. Then file the receipt with the manual — the next form will ask for it.