This Aero X15 pistol features a Daniel Defense DDM4 V7P upper receiver. Included are one 30-round magazine and an SB Tactical stabilizing brace. The pistol is also equipped with a Monstrum Ghost 1x20 red dot optic. 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.