This Anderson Manufacturing AM-15 features a Breach upper, an MDT bipod, a B5 Systems pistol grip, a Breach ambidextrous charging handle, a safety, a 12.5" M-Lok S-One Ballistic Advantage handguard, and a 1/7 twist. One 30-round magazine is included. 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.