XCR-M Bolt .308 Type 2 $100.00 Used for .243, .260, & 6.5 Creedmoor also. XCR-M Bolt .308 Type 2 quantity Add to cart SKU: M-BT-2-308 Categories: XCR Lower Receiver Parts, XCR Parts, XCR-M Lower Receiver Parts, XCR-M Parts Description Description Used for .243, .260, & 6.5 Creedmoor also.