FN SCAR-20S:

• Caliber: 5.56x45mm NATO
• Barrel length: 14.5 inches
• Overall length: 26.1 inches (with stock fully extended) to 37.5 inches (with stock fully collapsed)
• Twist rate: 1:7 inches
• Magazine capacity: 10 rounds
• Rate of fire: 625-635 rounds per minute (rpm)
• Trigger: Two-stage trigger, with a pull weight of around 4.5-6.5 pounds
• Stock: Telescoping polymer stock, with adjustable cheekpiece and length of pull
• Weight: 7.25-7.9 pounds (empty)
• Sights: Built-in iron sights, with a full-length Picatinny rail on the top of the receiver for mounting optics or other accessories

The FN SCAR (Special Operations Forces Combat Assault Rifle) is a modular rifle designed and manufactured by Fabrique Nationale (FN) in Belgium. It is available in two primary variants, the SCAR-L (light) and the SCAR-H (heavy) the 7.62X51mm variant.