BOND ARMS Backup .45 ACP 2.5in Derringer
About this product
What is the BOND ARMS Backup .45 ACP Derringer? It's a stainless steel, two-shot, over/under derringer engineered for discreet, close-quarters personal defense where a full-size autoloader or revolver isn't practical or permitted. Built on Bond Arms' robust pivoting-barrel platform, the Backup prioritizes mechanical reliability and a non-reflective profile over high capacity or extended range, making it a specialized tool for a specific layer of concealed carry.
What is the BOND ARMS Backup .45 ACP Derringer used for?
The Backup's primary use is as a deep-concealment or backup defensive firearm, operating as a minimalist last-resort tool when no other weapon is accessible or appropriate. Its compact 4.5-inch overall length and 2.5-inch barrel profile allow it to vanish in a pocket holster or ankle rig, while its crossbolt safety and rebounding hammer provide a clear manual-of-arms for a high-stress contact-distance encounter. This is not a hiking gun or a primary carry pistol; think of it as a specialized layer of defense for the final moments of a confrontation.
How does the BOND ARMS Backup Derringer compare to a North American Arms Mini-Revolver?
The BOND ARMS Backup chambered in .45 ACP offers significantly more terminal ballistic authority than a .22LR or .22 Magnum North American Arms Mini-Revolver, which is the core trade-off between the two ultra-compact platforms. The NAA Mini-Revolver is mechanically simpler and often lighter, but the Backup chambering in .45 ACP with its 230-grain standard-pressure loads provides a much more credible defensive round, albeit with the platform's inherent two-round limitation and more pronounced recoil impulse measured in foot-pounds of energy.
What does it weigh and what are the dimensions?
The BOND ARMS Backup .45 ACP Derringer has an unloaded weight of 22.5 ounces (638 grams), an overall length of 4.5 inches, and a height of 3.9 inches from the top of the rear sight to the bottom of the grip frame. Its 2.5-inch over/under barrel assembly gives it a thickness, or slide width, of approximately 1.125 inches at its widest point, which includes the pivoting barrel mechanism and the crossbolt safety, making it a substantial-feeling 22.5-ounce package for its size.
Who is this NOT for?
The Backup Derringer is not for a first-time gun owner seeking a primary home defense or range-training firearm, as its two-shot capacity and substantial recoil require deliberate, practiced handling under stress. It's also a poor choice for anyone prioritizing ammunition capacity, rapid reloads, or engaging targets beyond 7 yards, where its fixed sights and snappy .45 ACP recoil become significant limiting factors compared to modern micro-compact autoloaders. If you want a versatile all-arounder, consider our Stevens 334 Rifle in .308 Win for a far more capable firearm in most other contexts.
What's in the box?
You receive the complete BOND ARMS Backup Derringer, one user manual, and one factory-supplied plastic hard case for transport, which is adequate for basic storage but not intended for long-term or humid environment protection. The package does not include a holster, cleaning rod, snap caps, or spare grip panels, so budget an additional $60-$120 for a quality leather or Kydex pocket holster to carry this tool correctly.
Is the BOND ARMS Backup Derringer worth it at $458.99?
At $458.99, the Backup's value is contingent on accepting its limitations for a specific, high-context role where no other firearm will do the job as discreetly. You are paying for a purpose-built, American-made stainless steel tool with an interchangeable barrel system, not for versatility. Compared to a similarly priced Stevens 555 Sporting O/U Shotgun, you are trading overwhelming capability for ultimate concealability, a transaction that makes sense only if your sole criterion is deep concealment of a .45 ACP chambering.
Specs at a glance
Video review
Pros & cons
What works
- Chambered in .45 ACP — delivers standard-pressure terminal ballistics from a 2.5-inch barrel
- Weighs 22.5 oz — provides a stable, dense feel in hand to manage .45 ACP recoil
- Interchangeable barrel system — allows caliber swaps in under 2 minutes with compatible Bond Arms barrels
- Patented rebounding hammer — eliminates the need for a manual half-cock safety notch
Trade-offs
- Two-round capacity — requires immediate reloading after the first two shots
- Substantial 22.5-ounce weight — heavier than many polymer-framed micro-compact 9mm pistols with higher capacity
- Manual extractor for spent cases — adds a deliberate step to the unload/clearance process compared to auto-ejectors
Expert review
Key attributes
| upc | 855959003301 |
| manufacturer | Bond Arms |
| manufacturer part number | BABU 45 Auto |
| action | Break Action |
| atf type | Pistol |
| barrel length | 2.5" |
| caliber/gauge | .45 ACP |
| capacity | 2 |
| color | GREY |
| length | 11.8000 |
| number of magazines | 0 |
| package height | 2.8 |
| package width | 7.9 |
| product type | Specialty Handgun |
| shipping weight | 2.1 |
| sights | Front Blade/Fixed Rear |
| sights type | FIXED |
| safety | Crossbolt |
Frequently asked questions
- Does this work with a pocket holster from DeSantis or Vedder?
- Yes, the BOND ARMS Backup uses a standard derringer profile, making it compatible with dedicated leather or Kydex pocket holsters from major manufacturers like DeSantis (Nemesis) and Vedder (Pocket Locker). The specific model you should order is typically labeled for 'Bond Arms 2.5-inch' or 'Derringer' fits, given its 4.5-inch overall length and 1.125-inch width.
- Is it compatible with +P .45 ACP ammunition?
- Officially, BOND ARMS states the Backup is rated for standard pressure .45 ACP cartridges only and does not recommend the use of +P or +P+ ammunition. Firing high-pressure rounds can accelerate wear on the pivoting barrel hinge and potentially void the manufacturer's warranty, so stick with 230-grain FMJ or standard-pressure defensive hollow points.
- How long does shipping take to an FFL?
- Processing and shipping to your designated FFL holder typically takes 3-5 business days from our warehouse after order verification and FFL documentation is received. Transit time via our standard carrier adds another 2-7 business days depending on your location in the continental United States.
- Can I return it if the caliber is not what I expected?
- No, due to federal firearms regulations, we cannot accept returns on firearms except in cases of legitimate manufacturer defect verified by our armorer. All caliber and model selections are final at the point of sale, so ensure your chosen FFL will handle the transfer before purchasing this 2.5-inch barreled, .45 ACP chambered derringer.