Bond Arms Barrel Features The Bond Arms replacement barrel chambered in .45 ACP is machined to close tolerances for reliable chambering and consistent accuracy in this compact 2.5 inch configuration. Running .45 ACP allows owners to feed their derringer with one of the most widely available defensive and target calibers simplifying ammunition selection and cost. The satin stainless finish delivers a smooth corrosion-resistant surface with a polished attractive appearance for everyday carry. This shorter barrel length keeps the derringer compact and easy to conceal. Since the barrel fits any original Bond Arms derringer frame owners can add .45 ACP capability to an existing pistol without purchasing an entirely new firearm. This kind of interchangeability lets shooters build a versatile multi-caliber Bond Arms setup suited to different carry situations. Bond Arms has built its reputation on this rugged American-made barrel-swapping system across its derringer lineup. For owners wanting a compact easy-to-carry .45 ACP option this barrel is a practical choice. Bond Arms Barrel Specifications Brand: Bond Arms Caliber: .45 ACP Barrel Length: 2.5 Finish: Satin Stainless Threaded Barrel: No Available At: GrabAGun