The Truvelo CMS 20x42mm is a bolt-action counter-materiel rifle chambered for the 20x42mm round, designed for use against explosive ordnance disposal targets, lightly armored vehicles, and hardened installations. It is the highest-caliber rifle in the Truvelo product line and was developed specifically for specialized military applications requiring large-caliber precision fire. The CMS designation stands for Counter Materiel System. Type: Rifle Action: Bolt-Action Caliber: 20x42mm Capacity: 3 Year introduced: 2005, South Africa Weight: 750 oz Overall length: 68" Status: Limited Production Military use: Yes Intended use: Military, Anti-Materiel