Original Item: The bolt assembly of the Mk III Ross rifle of WW1 is of the straight-pull variety, in which pulling the bolt handle straight back causes the bolt head to rotate out of its locked position. In the original nomenclature, the inner rotating component that includes the head is called the ?bolt? and the outer component with the handle is called the ?sleeve.? IMA has one set of inner bolt and exterior sleeve to offer without any of the other internal parts. The safety lever assembly is included. Both parts are in excellent condition and show little use. The bolt is a deep blue, while the bluing on the sleeve has faded.