Upgrade or replace your current upper with this NEW factory OEM FN 509 Midsize slide assembly, chambered in 9mm. This complete upper features a 4" barrel, recoil assembly, and factory iron sights. Precision machined and finished in black, this is an original FN part built for reliability and performance. Compatible with FN 509 Midsize platforms.

• Manufacturer: FN

• Model: 509 Midsize

• Barrel Length: 4”

• Includes: Complete slide, barrel, recoil spring assembly

• Finish: Black

• Optic Ready: No

• Sights: Low-Profile Iron Sights

• Condition: Brand New

Ships via USPS Priority within 1 business day after payment is received.