This Springfield Armory Echelon features an ambidextrous mag release, an ambidextrous slide lock, a front night sight, and a Holosun HS507C red reticle optic. Purchase includes the original box, soft case, one 17-round magazine, two 20-round magazines, a mag plate, a loader, and backstraps. 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.