Synthetic-stocked version of the Mark II with a standard-weight 21-inch barrel and AccuTrigger. The F designation indicates the synthetic stock option, which is weather-resistant and lower maintenance. Type: Rifle Action: Bolt-Action Caliber: .22 LR Capacity: 10 Year introduced: 1997, USA Weight: 5 oz Overall length: 39.5" Status: Active Intended use: Plinking,Small Game,Training,Hunting