The FN509 is a great full-size, mid-size 9mm pistol. They have recently release the 510 and 545 which are the 10mm and 45acp rounds. The FN509 is what I picked up over new years weekend. I purchased this one at Bass Pro Shop for 699.99 and it came with the Viper Vortex. Other features for this particular firearm is: With…