Tacticool UGG does a full review of the licensed EMG FN 509 Tactical GBB pistol made by Double Eagle. The Airsoft FN 509 is a precise replica of the FN entry in the 2015 XM17 Modular Handgun System competition, developed with insights from retired Delta Force operator Larry Vickers. It features an ergonomic, textured grip with customizable back straps, ambidextrous controls, and front and rear slide serrations for seamless handling. The slide is RMR-ready with a mounting plate for reflex sights, alongside tall sights that maintain functionality when optics are installed. With a reinforced drivetrain, dual spring system for durability, and a uniquely designed air nozzle for smooth operation, the FN 509 offers a modern and reliable take on the pistol.