The protect the 2nd amendment has a 4.25" long barrel that provides tighter shot patterns, higher velocities, and even more manageable recoil than shorter barrels.It will accept all of the standard extra interchangeable barrels and also has the extended grips for added comfort.It's chambered for 45colt/.410.Metal Finish: Stainless SteelType: DerringerAction: SAOCaliber: 45 Colt (LC)Barrel Length: 4.25"Capacity: 2Safety: CrossboltGrips: RosewoodSights: Blade Front, Fixed RearWeight: 23.50 ozBarrel Length Range: 4" to 4.99"Weight Range: 16 oz to 31.99 oz