FN 509M Midsize Tactical 9mm 4.5in FDE Bundle 1×15 & 4×24

The FN 509M Midsize Tactical is a multi-role semi-automatic pistol chambered in 9mm designed for everyday carry, home defense, and duty use. This optics- and suppressor-ready bundle ships in Flat Dark Earth and includes a 4.5-inch threaded barrel (1/2-28), suppressor-height night sights, interchangeable backstraps and a soft ballistic case. The package also includes five magazines — one 15-round and four 24-round — for a range of capacity options in training and service scenarios. The slide is factory-prepared to accept common micro red-dot footprints for fast, low-profile optics mounting.

Key Specifications

• The caliber is 9mm.
• The barrel length is 4.5 inches and is threaded for 1/2-28.
• The package includes five magazines — one 15‑round and four 24‑round magazines.
• The frame material is polymer with a Flat Dark Earth finish.
• The action type is semi-automatic (striker-fired).
• The optic footprint supports multiple micro red-dot footprints (optics-ready).
• The sights are suppressor-height 3-dot night sights.
• The unloaded weight is approximately 26.5 oz.
• Included accessories: two interchangeable backstraps and a ballistic case.
• The slide finish and wear surfaces are treated with PVD for durability.

Balanced for controllability and rapid sight acquisition, the FN 509M Midsize Tactical pairs duty-oriented features with concealed-carry proportions. Its optics-ready slide, threaded barrel and a mix of 15‑ and 24‑round magazines make it flexible for training, range use and practical defensive applications. Built on a high-endurance polymer frame with a durable finish, this bundle is configured to deliver practical versatility and reliable performance out of the box.