The Remington Model 552 Speedmaster is a tube-fed semi-auto that accepts all .22 Short, Long, and LR cartridges interchangeably. Classic American rimfire with hardwood stock. Type: Semi-Auto Rifle Action: Blowback Caliber: .22 LR Capacity: 15 Year introduced: 1959, USA Weight: 5.75 oz Overall length: 40" Status: Active Intended use: Plinking, Small Game, Collecting