ATI's polymer upper and lower AR-style .22 LR carbine. The Omni Hybrid polymer receiver construction significantly reduces weight compared to aluminum alternatives. One of the lightest AR-22 carbines at under 4.5 lbs. Type: Rifle Action: Semi-Auto Caliber: .22 LR Capacity: 28 Year introduced: 2014, USA Weight: 70 oz Overall length: 35.5" Status: Active Intended use: Plinking / Range Training