Bond Arms Barrel Features The Bond Arms replacement barrel chambered in .40 S&W is machined to Bond Arms precise factory tolerances delivering dependable chambering and consistent accuracy from its 4.25 inch length. This length gives the barrel an extended sight radius compared to Bond Arms shorter offerings which can aid practical accuracy for aimed shots. The satin stainless finish provides a smooth attractive surface that resists corrosion through regular handling and carry. Running .40 S&W through this platform gives owners access to a proven defensive cartridge with solid stopping power. Because this barrel fits any original Bond Arms derringer frame owners can add .40 S&W capability to an existing pistol without buying an entirely new firearm. This flexibility allows shooters to build a multi-caliber Bond Arms setup that matches different carry and range needs. Bond Arms has built a strong reputation on this kind of interchangeable barrel system across its compact derringer lineup. For owners wanting a dependable .40 S&W option with extended sight radius this barrel is a solid addition. Bond Arms Barrel Specifications Brand: Bond Arms Caliber: .40 SW Barrel Length: 4.25 Finish: Satin Stainless Threaded Barrel: No Available At: GrabAGun