This Heckler & Koch MR556 A4 features a Driven Arms Co. Utility full-size grip and Scalar Works Peak/01 sights. Purchase includes the original soft case, manual, one 30-round magazine, and the original pistol grip. 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.