This Emperor Arms Cobra 12 features a 3" chamber and a fixed CYL bore. Purchase includes the original hard case, manual, two 5-round magazines, and a shell holder. Get the best bang for your buck when you get a Certified Used Firearm. When you see the Certified Used stamp on any of our firearms, you can be confident that you're getting exactly what you want - a gun only in very good to excellent condition and held to the highest quality standard. All Certified Used Guns come with a 'no questions asked' return policy.