FN SCAR 17S - Summary The firearm pictured is an FN SCAR 17S, a semi-automatic 7.62x51mm NATO/.308 Winchester rifle manufactured by FN in Columbia, South Carolina. The photos show a black/dark-gray configuration with a folding/adjustable stock, folding sights, extended rail/handguard setup, and a muzzle device. The receiver marking and serial are visible in the photos. Details: Manufacturer: FN America Model: SCAR 17S Caliber: 7.62x51mm NATO / .308 Winchester Action: Semi-automatic Operating system: Short-stroke gas piston Barrel length: 16.25 inches (standard SCAR 17S configuration) Magazine: Detachable box magazine Magazine shown: 20-round magazine Receiver: Aluminum construction Stock: Folding and adjustable FN SCAR-style stock Grip: Textured polymer pistol grip Sights: Folding front and rear iron sights Top rail: Full-length Picatinny rail Handguard: Extended ventilated/rail-equipped handguard Muzzle: Muzzle device installed Finish: Black/dark gray Sling: Black two-point-style sling shown Markings: "FN COLUMBIA, SC USA / SCAR 17S / cal. 7.62x51" Serial shown: H0C26901 (verify the characters against the receiver for an official listing) Overall configuration: SCAR 17S with folding stock, extended handguard/rail system, folding sights, and muzzle device Overall: This is a FN SCAR 17S in 7.62x51mm, with a 16.25" barrel and 20-round magazine. It appears to have several accessories/configuration additions beyond the basic rifle, including the extended handguard/rail setup, muzzle device, and sling.