Ruger AR-556 standard configuration in .350 Legend with 16.38-inch barrel, a non-MPR entry point into the straight-walled hunting cartridge on the AR platform. Type: Rifle Action: Semi-Automatic Caliber: .350 Legend Capacity: 5 Year introduced: 2020, USA Weight: 96 oz Overall length: 35.5" Status: Active Intended use: Hunting