modal30Model 30. Description: Bolt Action Rifle Introduction Year: 1921 Year Discontinued: 1940 Total Production:Approximately: 22,738 DesnerInventor: Research & Development Action Type:Model 30 Express. Description: Bolt Action rifle Introduction Year: 1926 Year Discontinued: 1940 Total Production:Approximately: 22,800 DesnerInventor: C.H. Barnes