The ZEV Technologies Core Duty is a premium AR-15 built by a company known primarily for Glock and pistol customization. The Core Duty features ZEV's proprietary machined handguard, cold-hammer-forged barrel, and enhanced lower receiver with flared magwell. ZEV brings their pistol-quality fit and finish to the rifle market. Type: Semi-Auto Rifle Action: Direct Impingement Caliber: 5.56x45mm Capacity: 30 Year introduced: 2019, USA Weight: 6.7 oz Overall length: 32" Status: Active Intended use: Duty, Range, Competition