This optic ready ZEV SIG SAUER P320 includes the original case, owner's manual, two 17-round magazines, and features a ZEV slide and fiber-optic front sight. 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.