CVA Carbon Fiber Collapsible Ramrod 40,45 50 Cal. For Paramount, Accura LRX. MRXCVA Carbon Fiber Collapsible Ramrod 40,45 50 Cal. For Paramount, Accura LRX. MRX Made from carbon fiber for durability; Collapsible for convenient storage and packing; Patented PalmSaver knob for comfortable loading; Suitable for . 40, . 45, and . 50 caliber Paramount, Accura LRX, and MRX muzzleloaders Item Category Code: 3600 Product Group Code: 3600B Product Sub Group 1: 3600B1 Inactive: No Prop65 Applies: Yes Prop65 Cancer Harm: Yes Prop65