This Sig Sauer MCX Rattler features a Sig folding pistol brace, a Magpul sling, a Sig Foxtrot-MSR light with touchpad, a Sig Romeo 4XT-Pro optic, and a Sig Juliet 3 magnifier. Purchase includes a soft case, user manual, and three 30-round magazines. 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.