The Zion-15 with an 18-inch barrel is the longer configuration of IWI's direct-impingement AR-15, providing enhanced velocity and reduced muzzle blast compared to the standard 16-inch version. The 18-inch barrel is optimal for maximizing 5.56 NATO ballistic performance at distances beyond 400 meters. Preferred by some law enforcement units for its improved long-range capability. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2020, Israel Weight: 6.8 oz Overall length: 37.5" Status: Active Intended use: Law Enforcement, Tactical / Defense