Bond Arms Barrel Features The Bond Arms replacement barrel is chambered in 10mm and finished in a matte stainless treatment that gives it a subdued low-glare appearance compared to Bond Arms brighter satin barrels. At 3 inches this barrel keeps the derringer compact and easy to carry while delivering the significant power of the 10mm cartridge in a small package. Swapping barrels lets an existing Bond Arms owner add a new caliber to a single frame rather than purchasing an entirely separate firearm. The matte finish also helps minimize glare and reflection a useful trait for concealed carry and low-light scenarios. This barrel is designed to fit Bond Arms derringer frames giving owners flexibility to build out a collection of interchangeable barrels in different calibers and finishes on a single frame. Changing barrels requires no gunsmithing letting the shooter reconfigure their derringer for different calibers depending on their needs that day. Because it shares Bond Arms fit and quality control standards this barrel installs and locks up exactly like the barrel it replaces. The 10mm chambering makes this barrel a popular choice among owners looking to pair their Bond Arms derringer with a common semi-auto handgun caliber they already load for. Bond Arms Barrel Specifications Manufacturer: Bond Arms Model: Barrel Caliber: 10mm Barrel Length: 3 Color: Matte Stainless Threaded Barrel: No Available At: GrabAGun