Mid-tier AR-15 from SIG with a free-float M-LOK handguard, enhanced trigger, and mid-length gas system on a direct impingement platform. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2018, USA Weight: 6.9 oz Overall length: 32.5" Status: Active Intended use: Duty, Patrol, Range, Competition