Gun safe vs lock box: one resists an attack, the other controls a hand

We have not handled or attacked any of these four. Every figure below comes from its maker and links to its source. One scoring note: the Stealth UL14 is scored on the gun-safe rubric and the three boxes on the access-control rubric, because they do different jobs, so their numbers are not directly comparable. Both rubrics are published at how we rate.

They answer different questions

A gun safe answers: how long does this container resist someone who has found it and brought tools? The credible answer is a UL residential security container listing, which times a technician attacking the safe with common hand tools (UL). Everything about a safe follows from that: thick steel, many bolts, hundreds of pounds, bolted to a floor.

A lock box answers: can the wrong hand reach this firearm in the next few seconds? That is a question about latches, codes and mounting, not about attack time. A good lock box is judged on whether it opens instantly for you, never for a child, and stays attached to something.

Both are legitimate. The mistake is buying a lock box and expecting a safe's answer, which is exactly what the marketing in this category encourages.

Gun safe vs lock box at a glance

Four models, side by side

Note how close the steel figures are between a good lock box and a mid-market safe. Fort Knox states a 10-gauge body and a 3/16 in plate door (Fort Knox); Stealth states 12-gauge door and body on the UL14 (Stealth). The lock box has thicker steel per square inch. What it does not have is 365 lb, ten 1.25 in bolts, a hard plate, a relocker and a listing. Steel thickness is not the same as attack resistance; our steel gauge explainer goes into why.

What a lock box is genuinely for

• Keeping a defensive handgun beside the bed, reachable in seconds. This is the case a safe serves badly. See bedside safe picks.
• Travelling. A box with a cable goes into a hotel, a rental, a friend's house or a vehicle. Hornady supplies the Lock Box XL with a cable for exactly this (Hornady).
• Meeting a storage requirement away from home. A locked container attached to the vehicle is the usual practical answer; see storing a gun in your car.
• Layering inside a safe. A small locked box inside a gun safe adds a second barrier for the one firearm a teenager knows the safe code for.
• Short-term retention while you are in the room. This is the StopBox category. Its maker describes the Pro in retention rather than safe terms (StopBox USA), and taking that at face value is the right approach.

What a safe adds that no lock box can

1. Immovability. The most common way a small container is defeated is that it leaves with the thief. Anchoring solves this, and a heavy safe makes it trivial.
2. A measured attack time. Only a listed safe has one. Our RSC explainer covers what five minutes of tested resistance is worth.
3. Capacity. Long guns, ammunition, documents and spares in one anchored place.
4. A fire rating, sometimes. Rare on gun safes and non-existent on lock boxes, but it exists.
5. One place to secure. Five lock boxes around a house is five things to remember. A safe is one.

Where the law treats them differently

Legal standards for firearm storage are written around the device, not the category, which means a lock box can satisfy a requirement that a poorly built safe does not. California's gun-safe standard sets construction minimums such as "minimum 12-gauge thick steel for a single-walled safe" and "a minimum of three steel locking bolts of at least 1/2-inch thickness", and separately accepts a UL RSC rating from a nationally recognised laboratory (11 CCR § 4100, via Cornell LII). Alongside that, the state maintains a roster of approved firearm safety devices, on which several lock boxes appear.

So "is a lock box legal?" has a model-specific answer, not a category answer. Check the exact model against the current roster; see CA DOJ approved gun safes. This is a summary of published rules, not legal advice.

Why most homes end up with both

The two products fail in opposite directions, which is what makes them complementary. A safe is secure and slow. A lock box is fast and portable. A household with a defensive handgun and a collection needs both properties, and cannot get them from one container.

The usual arrangement: an anchored safe holding the collection, ammunition and documents, plus one quick-access box within reach of the bed. Add a cable box if you travel or if a vehicle is part of your routine. Our guides to storing a handgun for home defence and storing guns safely with kids cover how to run that without creating new risks.

Choosing between them on a fixed budget

• Several long guns, no secure storage at all: the safe or a cabinet first, every time. Start at under $1,000.
• One handgun, children in the house: a good lock box, mounted, is the higher-value purchase. See under $500.
• A handgun and a vehicle routine: a mechanical box plus a cable box, and skip the safe until the collection grows.
• Whatever you buy, anchor it. A bolted 22 lb box beats a loose 100 lb one. Our guide to bolting down a safe applies to both.

We searched CPSC recall notices on 2026-09-26 for every brand on this page; each product card shows its dated recall check, including the 2025 CPSC recall of a StopBox chamber-lock product that is not one of the models compared here.