Description
The Backup came about because police officers kept telling Bond Arms the same thing: they loved the derringer concept for a last-ditch gun, but the bright polished stainless was a little too flashy for something meant to stay hidden. Bond listened. This one wears a bead-blasted 2.5 inch matte stainless barrel over a crinkle powder-coated frame, a combination that kills glare and disappears into a pocket or under a vest the way a mirror finish never could.
Big Bore Power in a True Pocket Gun
At roughly 4.5 inches long and around 19 ounces, the Backup is genuinely pocket-sized, yet it sends two rounds of .45 ACP downrange from a platform that feels far more solid than the old-school derringers it descends from. That steel heft works in your favor here, soaking up recoil and keeping the little gun controllable shot to shot. The rubber grips give you a tacky two-finger hold, and the fixed blade front sight pairs with a rear notch for quick, simple aiming at defensive distances. Since .45 ACP is a rimless cartridge, the chambers have a notch cut into the left side so you can thumb spent cases right out.
Built Like Every Bond Arms Derringer
Bond Arms didn't cut corners just because this one hides better. You get the rebounding hammer, patented locking lever, crossbolt safety, and removable trigger guard the brand is known for. The break action opens with a push of the lever, you drop in two rounds, snap it shut, and cock the hammer when it's time to fire. Simple, rugged, and nearly nothing on it can break.
One Frame, Endless Options
Here's the part Bond Arms fans love: barrels are interchangeable across the entire lineup. Want a 4.25 inch .357 Magnum barrel for range days, or a .410/.45 Colt setup for snake duty? Swap it onto this same frame in under two minutes with a hex key. The Backup makes a great dedicated deep-carry or vehicle gun on its own, and it doubles as the foundation for a whole family of calibers down the road.
Key Specifications
- Manufacturer: Bond Arms
- Model: Backup
- MPN: BABU 45 Auto
- UPC: 855959003301
- Caliber: .45 ACP
- Capacity: 2 Rounds
- Action: Break Action, Single Action
- Barrel Length: 2.5 in
- Overall Length: 4.5 in
- Weight: Approx. 19 oz
- Barrel Finish: Bead-Blasted Matte Stainless Steel
- Frame: Steel, Crinkle Powder-Coat Finish
- Grips: Black Rubber
- Sights: Fixed Blade Front, Fixed Rear Notch
- Safety: Crossbolt Safety with Rebounding Hammer
- Trigger Guard: Removable
What’s Included
- Bond Arms Backup .45 ACP derringer
- Owner's manual
- Factory box
Frequently Asked Questions
Can I swap other Bond Arms barrels onto the Backup frame?
Yes, and that's one of the best things about owning one. Bond Arms builds every frame to accept every barrel in their lineup, so you can add anything from a .22 up to a .410/.45 Colt barrel to this same gun. Swapping takes a couple minutes with a simple hex key.
How bad is the recoil on a .45 ACP Bond Arms Backup?
Snappy but very manageable, which surprises most people. The all-steel frame puts the weight right around 19 ounces, and that mass soaks up a lot of the push. Reviewers who have run full-power 230 grain loads through it consistently report it's far more comfortable than other micro .45s in its class. Sticking with standard-pressure ammo keeps it pleasant, and Bond Arms recommends against +P in the .45 ACP barrels.
How does the Backup extract spent cases without a rim to grab?
Since .45 ACP is a rimless cartridge, the Backup's barrels use a notch cut into the left side of the chambers instead of a traditional extractor. After firing, you break the action open and thumb or pry the empty cases out through that notch. It's a simple system with nothing to wear out or break.
What makes the Backup different from other Bond Arms derringers?
The finish, mainly. Bond Arms developed the Backup after law enforcement officers asked for a deep-concealment gun without the bright polished stainless the brand is known for. It wears a bead-blasted matte barrel and a textured crinkle powder-coated frame that cut glare and stay discreet in a pocket or under a vest.





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