Product Summary
The FN 509C Threaded Barrel with Compensator is a premium upgrade kit designed specifically for the FN 509 Compact model. Constructed from durable stainless steel, this 4.34-inch barrel features a 1-10 twist rate and is chambered in 9mm Luger. The included compensator utilizes a unique quick-detach (QD) design, allowing for toolless installation and removal without the need for a gunsmith. By reducing muzzle rise by up to 25 percent and directing gases away from the shooter’s view, this kit provides a flatter shooting experience and faster follow-up shots.
