Sig Sauer(R) 3659BXR3PRS is a micro-compact Semi-Auto pistol chambered in 9mm Luger with a 3.1 in. black steel barrel and a 10+1 capacity. This P365X ROMEO-RS Compact configuration features a black Nitron stainless steel optic ready serrated slide and a black stainless steel frame with an accessory rail. It includes a factory-installed ROMEO-RS Compact optic XRAY3 Day/Night sights and two 10 round magazines for concealed carry and defensive use.Key Features9mm Luger chambering3.1 in. black steel barrelBlack Nitron optic ready serrated stainless steel slideBlack stainless steel frame with accessory railFactory-installed ROMEO-RS Compact opticXRAY3 Day/Night sightsShield RMSc footprint compatibilityIncludes 2 detachable 10 rd. magazinesSIG SAUER(R) produces firearms with a strong emphasis on modern engineering modularity and duty grade performance across its catalog. The brand is widely known for handguns rifles optics and related products developed for military law enforcement defensive and sporting applications. SIG Sauer(R) products are recognized for durable construction practical innovation and broad platform support across a wide range of configurations.