FN FN15 M4 Military semi-automatic rifle chambered in 5.56x45mm NATO with a 16.25-inch barrel and 30-round magazine capacity. Features a black finish, adjustable collapsible stock, polymer quad-rail handguard, vertical foregrip, detachable rear sight, fixed front sight, and flash hider. Exterior surfaces show light handling marks, minor scratches, and scattered finish wear. Manufacturer: FN America Model: FN15 M4 Military Caliber / Gauge: 5.56x45mm NATO Barrel Length: 16.25 Inches Magazine Capacity: 30 Rounds Modifications / Attachments: Knight's Armament quad-rail handguard, vertical foregrip, detachable rear sight, collapsible stock, flash hider, and black tactical sling. What is Included: Rifle with attached vertical foregrip, rear sight, and sling. Other: AR-15/M4-pattern configuration with black finish, fixed front sight, Picatinny upper receiver rail, and adjustable stock. Overall Condition: Very Good - Light visible signs of normal use and handling. Bore Condition: Good Mechanical Condition: Very Good Cosmetic Condition: Very Good - Minor handling marks, light scratches, and scattered finish wear on the receiver, barrel, and furniture. Attachment Conditions: Very Good - Light visible handling wear on the handguard, vertical foregrip, stock, and sling; functionality not independently verified.