The Remington Model 572 Fieldmaster is a slide-action .22 LR — one of the last pump-action rimfire rifles still in production. Handles .22 Short, Long, and LR. Type: Pump-Action Rifle Action: Pump-Action Caliber: .22 LR Capacity: 15 Year introduced: 1955, USA Weight: 5.5 oz Overall length: 40" Status: Active Intended use: Plinking, Small Game, Training