The Colt Canada IUR 5.56 is a canada-made select-fire rifle chambered in 5.56x45mm NATO, introduced in 2010. Primary use: military. Type: Rifle Action: Select-Fire Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2010, Canada Weight: 104 oz Overall length: 43.5" Status: Active Intended use: military