Mossberg's semi-automatic .22 LR with a tubular magazine in the buttstock and a distinctive appearance. The 351C used a Western Auto exclusive variant designation during part of its production run. Type: Rifle Action: Semi-Automatic Caliber: .22 LR Capacity: 7 Year introduced: 1960, USA Weight: 5 oz Overall length: 40" Status: Discontinued Intended use: Plinking, Collecting