The FN509M Tactical (Model 66-101711) is a purpose-built mid-size 9mm striker-fired pistol engineered for tactical use, duty carry, and precision-focused shooters who want an optics-ready, suppressor-capable platform straight from the factory. Built on a durable polymer frame with a refined grip profile and interchangeable backstraps, the FN509M balances controllability with concealability. At its core is a 4.5" barrel threaded 1/2x28 to accept common suppressors and muzzle devices, finished in corrosion-resistant PVD (black). The slide is optics-ready for popular micro red dots and fitted with suppressor-height 3-dot night sights to co-witness with optics or clear a suppressor. The striker-fired action delivers a consistent trigger feel without a manual external safety, and the pistol ships with a generous magazine package: one (1) 15-round and four (4) 24-round magazines — ideal for range sessions, training, or duty use.