This Sun Devil Manufacturing SD15 features a Barrett upper paired with a Sun Devil lower, an integrated front sight, a flip-up rear sight, and a threaded barrel with a muzzle brake. One 30-round magazine is included. This rifle is chambered for 6.8 Spc Mag. The included magazine is for 5.56 and does not feed reliably. 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.