The FN 509 is a dependable semi-auto originally designed for military and law enforcement use. This handgun design was also submitted to the U.S. Army handgun acquisition trials, ultimately losing out to the Sig P320 (M17). 1-15 round magazine, 1-12 round magazine, the original box, manual and a backstrap 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.