A 150kg gun safe is the weight class serious Australian firearm owners move to once a basic cabinet stops feeling adequate, and this guide ranks the heaviest, best-rated options worth buying in 2026.
- Secuguard GS3K CAT A/B/C/D/H-10 covers every firearm category in one 150kg gun safe - Buy for mixed collections.
- CMI CR5 Commander Safe TDR pairs firearm storage with cash and documents behind a time-delay lock - Buy.
- Platinum DR3 Director suits buyers who want Australian-made steel with dual burglar and fire rating - Consider.
- Chubbsafes Viper Size 10 is the largest European-tested option on this list - Consider.
- Guardall T25 and SN25 work as secondary handgun and ammunition units, not primary 150kg gun safe replacements - Hold.
Why this matters
A firearm cabinet under roughly 150kg empty can be tilted onto a furniture dolly and carried out by two people during a break-in, which is the exact failure mode licensing conditions and insurers are trying to close. Once you're shopping in the 150kg gun safe class, the question stops being "does it lock" and becomes "can it physically leave the property."
The Secuguard GS3K CAT A/B/C/D/H-10 Rifle Gun Safe sits at the top of this list because it's built to cover every Australian firearm category from A through H in a single cabinet, which matters if your storage needs span handguns and long arms under one licence. A safe in this weight bracket that isn't bolted to a slab or stud wall is still just a heavy box someone can lever open given an unsupervised shed and enough time.
“If two people can carry it out of the shed, it's not really a 150kg gun safe.”
How we ranked
Every model on this list was assessed against four things that actually change break-in outcomes: firearm category compliance (A through H, per the National Firearms Agreement classification), locking mechanism type, whether the body carries a burglary and/or fire rating from an independent test house, and how the unit is designed to be fixed down. Weight class matters because it determines whether a forced-entry attempt requires tools left at the scene or a vehicle and time nobody has during a break-in.
Cabinets that only satisfy a minimum compliance checkbox without meaningful body mass or a rated lock were excluded, even where they're marketed as gun safes. The list below leans toward units stocked for Australian conditions in 2026, not imported models with no local compliance documentation.
The ranked list
1. The category-agnostic flagship — Secuguard GS3K CAT A/B/C/D/H-10
The Secuguard GS3K carries the H-10 designation, meaning it's built to hold up to 10 long arms while remaining compliant for Category A, B, C, D and H licences in the same cabinet. That range matters for anyone whose collection or business spans rifles, shotguns and handguns under one storage solution. Verdict: Buy — this is the safest default pick for a mixed-category collection in 2026.
2. The vault for firearms plus valuables — CMI CR5 Commander Safe TDR
The CMI CR5 Commander Safe TDR is time-delay resistant construction, which means the lock itself introduces a forced waiting period even once someone gets past the door. It's built for households or small dealers who need firearms stored alongside cash, jewellery or business documents in one unit rather than running two safes. Verdict: Buy — pick this over the Secuguard when the safe needs to double as a general high-value store.
3. The Australian-made all-rounder — Platinum DR3 Director
The Platinum DR3 Director Burglar & Fire Resistant Safe carries both a burglary rating and a fire rating in the same body, which is unusual at this weight class where most manufacturers pick one focus. It suits buyers who want documented compliance paperwork without importing a European-tested model. Verdict: Consider — strong middle-tier pick if dual fire and burglary protection outranks raw firearm capacity.
4. The largest European-tested option — Chubbsafes Viper Size 10
The Chubbsafes Viper Size 10 is the biggest cabinet in the Viper range Chubbsafes sells through BuyASafe, and it's built on the same European testing standards the brand uses across its commercial line. It's a fit for buyers who want a name with a long track record in the safe industry rather than a firearm-specific badge. Verdict: Consider — buy this if you want capacity and a recognised brand over category-specific firearm labelling.
5. The handgun companion — Guardall T25 Hand Guns & Ammo Safe
Guardall's T25 is sized for handguns and ammunition rather than long arms, which makes it a poor substitute for a 150kg gun safe but a reasonable secondary unit inside a larger secured room. Don't buy this as your only firearm storage if you hold a Category H licence for handguns plus long arms elsewhere. Verdict: Hold — buy alongside a primary heavy safe, never instead of one.
6. The ammunition-only option — Guardall SN25 Ammunition Safe
The Guardall SN25 is built specifically for ammunition storage, which many state licensing conditions require to be separate from the firearms themselves. It's not a firearm safe substitute and shouldn't be compared against the GS3K or CR5 on capacity or category compliance. Verdict: Hold — necessary compliance purchase, not a ranking competitor for primary storage.
Comparison table
| Safe | Firearm categories | Lock / rating | Best for | Verdict |
|---|---|---|---|---|
| Secuguard GS3K CAT A/B/C/D/H-10 | A, B, C, D, H | Category-compliant locking, 10 long-arm capacity | Mixed firearm collections | Buy |
| CMI CR5 Commander Safe TDR | General high-security | Time-delay resistant | Firearms plus cash/documents | Buy |
| Platinum DR3 Director | Burglar and fire dual-rated | Australian-made body | Compliance paperwork buyers | Consider |
| Chubbsafes Viper Size 10 | General high-security | European-tested | Largest capacity, established brand | Consider |
| Guardall T25 Hand Guns & Ammo | Handguns | Secondary unit | Companion to a primary safe | Hold |
| Guardall SN25 Ammunition Safe | Ammunition only | Compliance storage | Separate ammo requirement | Hold |
Where to buy
Buy a 150kg gun safe from a supplier that can provide compliance documentation matching your specific firearms licence category, not a generic import listing with no category labelling. Confirm anchor bolts and a bolting template are included or available, because a heavy safe left unfixed to the floor undermines the entire weight argument this article is built on. If a secondhand unit shows up cheap, get the lock history and re-keying documentation in writing before you buy, since an unverified combination on a 150kg gun safe is a bigger risk than an underweight new one.
FAQ
What is the best 150kg gun safe for Australian shooters in 2026?
The Secuguard GS3K CAT A/B/C/D/H-10 is the strongest all-round pick in 2026 because it covers every firearm category from A through H and holds up to 10 long arms in one cabinet.
Is a heavier gun safe actually more secure?
Yes — a 150kg gun safe is far harder to remove from a property than a lighter cabinet, since it can't be carried out by two people without a dolly or vehicle. Weight matters as much as lock quality once a burglar is already inside.
Do all firearm categories need the same type of safe?
No — Category A, B, C, D and H firearms can have different storage conditions depending on your state, which is why a category-agnostic safe like the Secuguard GS3K simplifies compliance for mixed collections.
How much does a 150kg-plus gun safe cost in 2026?
Pricing depends on steel gauge, lock type and fire rating, so check current pricing on each product page rather than relying on a single average figure. Heavier, dual-rated models like the Platinum DR3 typically sit above basic single-purpose cabinets.
Can I install a 150kg gun safe without professional help?
Moving and bolting a safe this heavy is a two-person job at minimum, and getting it wrong can void a compliance inspection. Most buyers arrange delivery and anchor installation through the supplier rather than doing it solo.
What's the difference between a gun safe and a gun cabinet?
A gun safe is typically rated for burglary resistance with a solid steel body, while a gun cabinet is often lighter-gauge and built mainly to meet minimum storage rules. A 150kg gun safe sits well above cabinet-grade construction on both weight and lock rating.
Does a 150kg gun safe need to be bolted down?
Bolting is strongly recommended even at this weight, because an unbolted safe can still be tipped, dragged or attacked with leverage tools if a burglar has enough time. Weight reduces risk; bolting removes it.
Are Secuguard and CMI gun safes compliant with Australian firearm categories?
The Secuguard GS3K is built to cover Category A, B, C, D and H, and the CMI CR5 Commander is rated as a general high-security safe suited to firearms plus valuables. Always confirm current compliance documentation against your specific state licence before buying.
One last thing
The most common mistake isn't picking the wrong safe — it's buying the right 150kg gun safe and leaving it unbolted on a timber floor, which defeats the entire point of the weight class. A heavy safe that can still be tipped over and pried open on the spot offers barely more protection than a light one; the bolts are not optional extras, they're the second half of the security decision.
