Sig Sauer(R) P211-GTO is a semi-automatic pistol chambered in 9mm. It features a 4.4 in barrel and a single-action-only operating system in a performance-oriented configuration. This model is supplied with 21-round and 23-round detachable magazines and features an optics-ready configuration with a factory-mounted ROMEO-X SIG-LOC optic.Key Features 4.4 in barrel chambered in 9mm Single-action-only semi-automatic operating system Supplied with 21-round and 23-round detachable magazines Optics-ready configuration with ROMEO-X SIG-LOC optic Performance-oriented P211-GTO configurationSIG 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.