SIG SAUER(R) P365-FUSE is a semi-automatic pistol chambered in 9mm Luger that combines the P365 platform with a longer 4.3 in barrel and extended configuration. It features a black DLC-finished barrel a black Nitron stainless steel serrated slide and a black frame with beavertail and Picatinny accessory rail. This configuration uses a 21-round detachable magazine and is equipped with a ROMEO-X Compact optic for rapid sight acquisition.Key Features 4.3 in black DLC barrel chambered in 9mm Luger Semi-automatic operation with 21-round detachable magazine Black Nitron stainless steel serrated slide Factory-equipped ROMEO-X Compact optic Beavertail frame with Picatinny accessory rail Extended P365-FUSE configuration for increased sight radius and capacitySIG 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.