Description
Bond Arms took their proven over-under derringer platform and gave it a working man's makeover with the Backup. Gone is the mirror-polished show finish. In its place you get a bead-blasted, anti-glare 2.5 inch stainless barrel paired with a black textured frame, a combination that stays subdued when it matters. Chambered in 9mm Luger with a two-round capacity, this thing was built for one job: riding quietly in a pocket or holster until you need it.
Why the Backup Derringer Earns Its Name
At just 4.5 inches long and 18.5 ounces, the Backup slips into spots where even a small revolver prints. The flat side-to-side profile is the real advantage here, and the bobbed 2.5 inch barrels let it drop into shallower pockets than the longer Bond Arms models. Despite the short sight radius, the blade front and fixed rear notch are plenty for defensive distances, and range reports consistently mention how manageable 9mm feels out of this gun. The 18 ounces of stainless steel and cushy rubber bird's head grips do a nice job taming recoil, and the low bore position puts the bottom barrel almost in line with your palm.
Bond Arms Quality in a Pocket Package
This isn't a bargain-bin derringer. The Backup carries the same machining and fit Bond Arms is known for, including their patented rebounding hammer, retracting firing pins, a cross-bolt safety, and a spring-loaded cammed locking lever that keeps the barrel and frame locked up tight. The single-action trigger keeps operation dead simple: cock the hammer, press the trigger, repeat.
One Frame, Endless Options
Here's the part that makes Bond Arms guns fun to own. The Backup accepts all standard Bond Arms interchangeable barrels, so this one frame can wear everything from .38 Special to .45 Colt/.410 with a quick barrel swap. Buy it as a deep-cover 9mm today, and build it into a whole family of calibers down the road. As a companion to your primary carry gun or a tackle box and trail piece, the Backup does its job without any fuss.
Key Specifications
- Manufacturer: Bond Arms
- Model: Backup
- Manufacturer Part Number: BABU 9mm
- UPC: 855959007095
- Caliber: 9mm Luger
- Capacity: 2 Rounds (Over/Under)
- Action: Single Action
- Barrel Length: 2.5 in
- Overall Length: 4.5 in
- Weight (Unloaded): 18.5 oz
- Frame Material: Stainless Steel, Black Textured Finish
- Barrel Finish: Bead-Blasted Anti-Glare Stainless
- Grips: Black Rubber
- Sights: Blade Front, Fixed Rear
- Safety: Cross-Bolt
- Barrel Compatibility: Accepts Standard Bond Arms Interchangeable Barrels
What’s Included
- Bond Arms Backup 9mm derringer
- Owner's manual
- Factory box
Frequently Asked Questions
How bad is the recoil on the Bond Arms Backup in 9mm?
Milder than most folks expect. At 18.5 ounces of stainless steel, the Backup is heavy for its size, and the soft rubber grips act like shock absorbers. Range reviews regularly describe 9mm recoil out of this gun as surprisingly tame, especially compared to the .45 ACP version.
Can I swap barrels on the Backup to shoot other calibers?
Yes, and that's one of the best reasons to own a Bond Arms. The Backup is compatible with all standard Bond Arms interchangeable barrels, so the same frame can run .38 Special/.357 Mag, .45 Colt/.410, and plenty of other chamberings. Swapping barrels only takes a hex key and a minute or two.
Does the Bond Arms Backup have an extractor for spent 9mm cases?
Since 9mm is a rimless cartridge, there's no traditional ejector on this barrel. Instead, there's a notch cut into the side of the chambers that lets you pry the empties out with a fingernail. In practice, fired cases slip out with very little effort.
Is the Backup a good choice for concealed carry?
It shines as exactly what the name says: a backup or deep-concealment piece. The flat profile, 4.5 inch overall length, and snag-free fixed sights let it disappear in a pocket or ankle rig where bulkier guns print. The rebounding hammer, retracting firing pins, and cross-bolt safety make it a secure gun to carry all day.





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