This Genesis Arms GEN-12 shotgun features a 3" chamber, a CYL bore, and includes one 10-round magazine, seven 5-round magazines, Hogue pistol grip, a 13" M-LOK handguard, and a threaded barrel with thread protector. *** Minor dings are present on the Picatinny rail, consistent with normal accessory mounting and handling. *** 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.