This Daniel Defense DD5 V4 rifle includes two windowed 25-round magazines, fully ambidextrous controls, a Daniel Defense vertical foregrip, and a radial muzzle brake mounted on a threaded barrel. Also equipped with the rifle is a Feyachi V90 2 MOA red dot sight paired with an M37 1.5-5x magnifier. 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.