The TNW Firearms Aero Survival Carbine in 5.56mm is a takedown AR-pattern rifle that breaks down for compact storage, designed for survival use with a waterproof storage tube that fits inside the stock. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2010, USA Weight: 60 oz Overall length: 32" Status: Active Intended use: Hunting, Survival