This Bond Arms 3-inch .40 S&W accessory barrel (brand part no. BABL-300-40SW-M) is a direct-fit replacement barrel for compatible Bond Arms break-open derringer frames, finished in matte for a durable, low-glare exterior. Swapping barrels lets a single Bond Arms frame shoot multiple chamberings, so you can add .40 S&W capability to your derringer without buying a whole new gun.

Key Specifications

• Chambered in .40 S&W, adding this caliber to a compatible Bond Arms derringer frame.
• Barrel length of 3-inch, Bond Arms’ interchangeable break-open barrel design.
• Finished in matte for a durable, low-glare exterior.
• Genuine Bond Arms factory accessory barrel, not a generic aftermarket part.
• Installs on compatible Bond Arms derringer frames using the standard hinge-pin barrel swap, no gunsmithing required.

Frequently Asked Questions

Will this barrel fit any Bond Arms derringer? It fits Bond Arms frames sized for this barrel’s hinge-pin and frame-length pattern; confirm your specific model’s compatibility before ordering, since Bond Arms uses a couple of frame-length families.

Do I need a gunsmith to install it? No. Bond Arms barrels are designed for a tool-free hinge-pin swap that an owner can do at home in a few minutes.

Can I use this to add a caliber to my derringer? Yes, that’s the main purpose of Bond Arms’ interchangeable barrel system — one frame can run several barrels chambered in different calibers.

Buy the Bond Arms 3-inch .40 S&W Accessory Barrel

Order this Bond Arms .40 S&W accessory barrel from our Bond Arms lineup, browsable in our full gun parts selection, with fast, insured shipping from our Lubbock, Texas gun shop.