The FN 509 Tactical is a 9mm pistol in FDE and Tan with a 4.5-inch cold hammer-forged stainless barrel and a 7.9-inch overall length. It weighs 27.9 ounces and holds 10+1 rounds, with one magazine included. The barrel has a recessed target crown, a polished chamber and feed ramp, and 1/2x28 threads with an O-ring thread cap. The slide is optics ready through the FN Low-Profile Optics Mounting System, and the night sights are set taller so they co-witness with an optic.

The 509 Tactical suits a buyer who wants a duty-oriented 9mm with a threaded barrel option and a sight system that works with an optic. The sight-protecting slide cap, enhanced grip texture and interchangeable backstraps add practical features for the hand. Fully ambidextrous slide stop and magazine release controls support use from either side. The page does not list state-specific facts for this item, so check your local rules before purchase.

Key features

• 4.5-inch cold hammer-forged stainless barrel
• 1/2x28 threads with O-ring thread cap
• FN Low-Profile Optics Mounting System
• Co-witnessing night sights
• Fully ambidextrous slide stop and magazine release

The pistol ships to the FFL dealer you choose, where you complete Form 4473 and the background check.