This optic-ready Springfield Armory Prodigy DS features the following Evolution Gun Works parts: magwell, mainspring housing, disconnector, hammer and strut, sear, and slide stop. Two 17-round magazines and two 20-round magazines are included. 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.