The FN 509 Tactical pistol in FDE with a 4.5-inch threaded barrel and 17-round capacity (brand part no. 66-100373) is a duty-grade 9mm built for suppressor use. FN America adds front slide serrations for easier press-checks, and 3-dot night suppressor-height sights co-witness with a mounted can or optic. This configuration ships without a manual safety, relying on the striker-fired action, and includes both a 24-round and a 17-round magazine. Among threaded-barrel semi-auto handguns, this 509 Tactical configuration favors shooters who want suppressor compatibility in a distinct FDE finish.

Key Specifications

• The chambering is 9mm.
• The capacity is 17 rounds.
• The barrel measures 4.5 inches and is threaded for suppressor use.
• The finish is FDE, with front slide serrations for a secure grip.
• The sights are 3-dot night, suppressor-height.
• The design has no manual safety, relying on the striker-fired action.
• The pistol ships with a 24-round and a 17-round magazine.
• Rifled with a 1:10-inch twist rate.
• Shipping weight of approximately 3.95 pounds.

Frequently Asked Questions

Is this pistol suppressor-ready? Yes, the threaded barrel and suppressor-height night sights support suppressor use.

What magazines are included? A 24-round and a 17-round magazine.

Buy the FN 509 Tactical Pistol, FDE

Suppressor-ready duty performance in a distinct FDE finish is exactly what this 509 Tactical delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.