This Beretta A400 Extreme Plus features a 3.5" chamber. Purchase includes the original fitted hard case, user manual, shim kit, stock spacers, oil bottle, choke wrench, and a 5-piece extended choke set. 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.